But the solution has proved easy. By simply releasing mobile apps named "Twitter," the company has seen a boost in new users.

"We did iPhone user tests and confirmed that even though there was a plethora of third-party Twitter apps, people were having trouble finding and selecting one because none were called 'Twitter.' This kept them from using Twitter at all," CEO Evan Williams wrote in a blog post titled "The Evolving Ecosystem" today.

Now 16% of new users sign up via mobile, versus 5% before the name changes. Almost half of all active users "make mobile a regular part of their Twitter experience," according to Twitter.

Despite the mobile push and recent speculation that Twitter's clients have killed its Web site, 78% of users still access Twitter at least once a month via the Web.

Twitter.com and Twitter's mobile Web site are the top ways users access Twitter, followed by SMS and the official iPhone and BlackBerry clients. TwitPic, the photo-uploading service, and Google Friend Connect, the widget that lets websites feature content from social networks, are also in the top ten ways users access Twitter. Surprisingly, Twitter for Android was not.

The rest of the 300,000 registered Twitter applications have much fewer users, Twitter said. But Williams is encouraged by the growth and variety of apps in Twitter's ecosystem. "These new services help people get the most out of Twitter, contributing to user growth and new business opportunities," he wrote.

Twitter said it now has more than 145 million registered users, although the number of active users is lower.

How do you access Twitter?

The slot machine's wheels spin, then stop. Some percentage of the time you're rewarded with a little graphic telling you that Tweetie will soon be known as Twitter for iPhone (congrats to you!). This sure looks like the future home of advertising on Twitter for iPhone, doesn't it? Twitter's Sean Garrett says that's not the case, "The slot machine thing is just a fun way to get the word out about the upcoming change from Tweetie to Twitter." It sure looks like prime real estate, though.

Now, there may not be ads up there in the future, but offers, promotions, paid inspirational haiku - something? That placement just seems too valuable for the company to let it sit there empty. Just as ads are coming to Twitter (relatively unobtrusive sponsored Tweets at the top of search results) so too can we imagine the free iPhone app will have ads. This seems like as good a place as any to put them. It's an easy assumption to make: tech investor Dave McClure freaked out on Twitter today calling them ad units, and the thought certainly crossed our minds when we saw them yesterday. Time will tell...

Storm trooper image from MotivatedPhotos.com.

People are saying that the acquisition of Tweetie by Twitter is bad news for the ecosystem of 3rd party developers that made Twitter so much more useful for millions of people. In truth though, those odds were pretty good for all of them. Tonight's news demonstrates again that independent developers can code their way into cash, equity and a job at one of the hottest startups on the web. That bodes well for those of us who love to use the software built by all of them, too.

Between cash and equity, Brichter must be a millionaire on paper at least. Brichter's one employee is Ash Ponders, who is in Spain and isn't saying anything on Twitter tonight. These guys built a service that won the big contest. If there were (and this is generous) 50 viable mobile Twitter clients - do you really think any of them launched this kind of business expecting better odds than that?

There are a number of other companies that could have become the official mobile app for Twitter but at this stage of the game Tweetie was an obvious choice. It loads fast, is relatively feature rich, is attractively designed and has proven popular with users.

Tweetie offers an attractive and simple desktop Twitter client, but was most valued for its iPhone version. Its strongest competitors were Twitterific, Tweetdeck and Seesmic. Twitterific is beautiful and perhaps a viable ad-supported small business but is too complicated to be appreciated by all but power users. (It's great on the iPad though.) Seesmic is strong on the smaller Android platform and is extending beyond Twitter alone.

Tweetdeck is the most powerful 3rd party Twitter app but it has higher aspirations, is exploring development of sophisticated Artificial Intelligence, is more complex than mainstream users need and is most likely to be bought by an enterprise, media or financial services company - not Twitter itself.

Tweetie is the everyperson's Twitter app. Twitter is chronically confusing for mainstream users, something the company has been trying desperately to change. If you are looking for a simple, attractive Twitter app for casual use then Tweetie on the desktop works great. When you're on a mobile phone, that's really all you ever need. In his blog post tonight Loren Brichter mentioned "simplifying the Twitter experience." That's something Twitter needs and something he's very qualified to help do.

There is still a place for other, more complex, Twitter apps. Media companies around the world (including this one) are finding Tweetdeck invaluable in carefully parsing the stream of Tweets for high-value nuggets. Seesmic is believed to be working closely with Microsoft in order to bring social media stream reading to all kinds of different platforms.

But tonight one of the many Twitter apps hit it big. That's good news for app developers in general and for the users who would use their software. Go ahead and build a client for a major social network. Odds are it won't prove a viable business, but if you were risk averse then building a Twitter client startup is probably the last thing on earth you'd do anyway. The fairy tale came true for one of these companies. That's reason enough for many more developers to build many more innovative apps in the future.

Update: There was a mistake in Sysomos' report. Twitter.com's share actually grew slightly from 45.7% in June to 46.7%. We apologize for the confusion.

Compared to Sysomos' last study of Twitter clients in June, Twitter.com's share fell from 55% to 46%. As Twitter's growth is slowing down, these numbers make a lot of sense. New users tend to use Twitter's web interface at first and then migrate to a third-party client. If Twitter.com's market share among Twitter clients is dropping, then this can be seen as a strong indication that the number of new signups is going down as well.

TweetDeck: The Client of Choice for Active Twitter Users

TweetDeck doesn't just have the largest number of users, it is also the tool of choice for the most active Twitter users. Sysomos analyzed the number of tweets posted by active users based on their primary Twitter application. On average, TweetDeck users send out 1.24 tweets per day, followed by Seesmic users (1.18 tweets/day) and HootSuite (1.11 tweets/day). Users of all the other popular clients like Tweetie, Twhirl and Twitterific update their status less than once a day. Those who prefer Twitter's own web interface only send out 0.67 tweets per day.

How Many Clients Do You Use?

Sysomos also analyzed how many third-party clients Twitter users normally use. Looking at active Twitter users only - those with at least 50 tweets in the last 5 months - the study found that 82% only used a single application. 14% used two applications, 2.35% used three and then the numbers drop off quickly. Only 0.01% of all active users used 6 or more clients. Chances are that a lot of active users use different mobile and desktop clients (Tweetie on the iPhone and Seesmic on the desktop, for example). This would explain why quite a large number of users use two clients.

Here are the latest tools and services we've come to love, maybe you'd like to give them a try too.

Think you find a lot of great stuff online? You should try sharing it with people using Posterous. The user experience for this curation and blogging tool is remarkable, a real model for other app makers to check out. Posting by email, iPhone and a web bookmarklet are all really easy. My Posterous is here and Frederic Lardinois shares some of this favorite stuff here. If you like what we write about on ReadWriteWeb then check out the cool little things we find but don't blog about at the day job - or the things that will make it to ReadWriteWeb later. Posterous just went real time this week, too.

See also: How to Use Tumblr, Posterous and Other Light Blogging Services

Topify

Ever feel frustrated by the emails you get from Twitter? We did, until we signed up for Topify. From really smart "X is now following you" emails to the ability to reply to direct messages by email - Topify delivers Twitter emails like Twitter ought to. It's another project from Ouriel Ohayon, who's also behind the wonderful iPhone app sharing service AppsFire. Ouriel makes cool stuff.

See also: Ten Companies Twitter Should Consider Acquiring Next

Seesmic Web

The never-ending battle between Seesmic and Tweetdeck to see who can make the coolest Twitter client is great for users. Tweetdeck ate my groups last night in an upgrade, after I'd spent hours building them, and so I decided to give Seesmic another try. The Seesmic Web app is awesome and Mac users can turn it into its own app on the desktop using Fluid. The best of many cool features? List support! You can turn any list you're following on Twitter into its own column in Seesmic. Frederic Lardinois says he's been using this combo for a few weeks, I still have some kinks to work out.

See also: Seesmic + Twhirl is a Vision of the Web's Future (From 18 months ago, how did our prediction turn out?)

Tweetie 2

The iPhone app Tweetie (iTunes link) made a major upgrade last month and we're loving it. Sarah Perez put this one on the list but everyone agrees - this is hot stuff. Will the forthcoming Seesmic Mobile app be as good? Will Tweetdeck's eventual support for Twitter lists turn into an awesome iPhone app? We'll see - but Tweetie's many rich features make it the app to beat right now. My favorite feature? The way the replies page can be pulled down like a spring to prompt a refresh. It's a little thing, but it's fun.

See also: The Favorite iPhone Apps of Five Geek Rock Stars

Aardvark

Aardvark leverages what it calls "the real-time web of people" to deliver answers to any question you have - from people in your social circle who know about the topic and are available at that very moment. Vark gets mixed reviews from some people, but I love it. From technical questions to practical ones about life to opinions about questions I have at work - I've been getting a lot of fast, helpful information from people on Aardvark lately. It's another app that scores very high on User Experience, especially in its iPhone and IM interfaces.

See also: The Robot Made Me Do It: Comparing 3 New Cyborg Q&A Services

Chrome/Chromium

Google's web browser is fast, it's really fast. It's hard to say goodbye to all the wonderful Firefox extensions we've been using for years - but it's harder to use any other browser once you've been using Chrome for awhile. We have high hopes for Chrome plug-ins, but even without them it's a joy to use. You can download Chrome for Windows here and Chromium for Mac here.

LazyFeed

LazyFeed is a topic-driven "discovery engine." It's basically a blog search client that brings in the freshest posts about topics you're interested in. A couple of months into using it, I'm still finding great content every time I fire it up. I've got this running in Fluid and it works great.

Want some serendipity on the iPhone? Try out competitor YourVersion's app. The first version isn't easy on the eyes, but it delivers roughly the same experience on the go.

See also: Ten Useful Examples of the Real-Time Web in Action

Those are some of our favorites lately. What apps have you fallen in love with this season? We'd love to know.

See also our previous installments in this series:
30 Days Later: 22 Apps We're Still Using One Month After Finding Them From one year ago!
Still Shiny: 23 Apps We're Using One Month Later From this Spring.
What We Use: A Tour of RWW Desktops (Mac & PC) Video screencasts.

Tweetie is already the mobile tweeting app of choice for geek rockstars like NY Times User Interface Specialist Nick Bilton, youth social networking analyst danah boyd, the TED conference's Leigh Ferreira and the Nonprofit Technology Network's Holly Ross. (Maybe you should try it too, if you haven't.) Below are ten forthcoming features that will make the new Tweetie knock your socks off.

1. Video recording and video tweeting.


2. Live filtering your tweet stream for keywords.


3. Persistent state, close the app or get a phone call and it will relaunch on the same page you left it.


4. Offline mode - including offline reading, follow, unfollow and save a link to Instapaper - all your commands will sync back up when you come online again.


5. A drafts manager lets you draft multiple tweets offline and then send all at once when you come online.


6. Sync your twitter contacts with iPhone adress book, marking up contacts with phone number, email and more. The new user profile pages look quite nice.


7. Threaded conversation display.


8. More powerful "nearby" UI, using Mapikt and supporting Twitter's forthcoming geolocation metadata.


9. Integration with third party apps Favstar.fm (know when people favorite your tweets), Tweet Blocker, and Follow cost (see posting frequency for users).


10. "Peak" gesture when replying to a tweet, presumably an easy way to glance back at the message you're replying to. Sounds nice.

That's a whole lot of features, but Brichter writes that he's kept it all looking beautiful. "And here's the beauty of this," he wrote today, "just as Tweetie 1 proved that you didn't have to sacrifice usability for functionality, Tweetie 2 proves it again. Every single one of these features fits naturally into the user interface, none adds unnecessary complexity. It's arguably even simpler than Tweetie 1, all while being vastly more powerful."

Unfortunately, there's no support for Groups. Not in the iPhone or the Mac version of Tweetie. That's a dealbreaker for some of us on the desktop, at least.

If all goes well, the new version will likely be available in the first half of October. Come on Apple, let the new Tweetie on through!

Images from ChicagoNow.

But what can be done? It's not like you can just quit Facebook, right? No - and you don't have to either. You just need to take a few precautions.

The problem in implementing these privacy options is that they're just too confusing for most non-tech savvy people to handle. And often, folks don't want to bother to take the time to learn. To simplify the process, we're offering five easy steps you can take today to help make your Facebook experience safer, more secure, and more private.

Step 1: Make Friend Lists

Yes, it will take some time, especially if you're connected to a couple hundred friends already. But this step, while not the quickest, is fairly simple. And it will be one of the most useful things you can do on Facebook.

Friend lists, like they sound, are lists for categorizing your friends into various groups. The nice thing about this feature is that once you set these lists up, you won't have to do it again. We suggest that you put your work colleagues and professional acquaintances into a friend list designated "work," personal friends you're not very close with into a list called "Acquaintances," and people you're related to into a list called "Family." Those three main categories will separate out the groups of "friends" who you may want to hide some information from.

To create a friend list, click on "Friends" at the top of the Facebook homepage. In the left-hand column, click "Friends" again under the "Lists" section. Now you'll see a button at the top that says "Create New List". Click it. In the pop-up that appears, you can name your list and pick members. If you've ever shared an application with your friends, the process of doing this will be very familiar.

When you've finished making lists, you'll be able to use them when selecting who can see what (or who can't!) when configuring the security settings described below.

Step 2: Who Can See What on Your Profile

At the top right of Facebook, there's a menu that many people probably ignore: "Settings." But this menu is now going to become your best friend. To get started, hover your mouse over the Settings menu and click "Privacy Settings" from the list that appears. On the next page, click "Profile." This takes you to a page where you can configure who gets to see certain information on your profile.

Before making changes, think carefully about the sorts of things you want public and the things you want private. Should "everyone" get to see photos you're tagged in? Or would you like to limit this only to those you've specifically chosen as Facebook friends?

Underneath each section on this page (basic info, personal info, status, etc.), you can designate who gets to see that particular bit of information. For anyone not using custom lists (see step 1), the best thing to enter here is "Only Friends." Anything else opens up your profile information to people you may or may not know. For example, choosing "Everyone" makes that info public, "Friends of Friends" lets your friends' friends see it, "My Networks and Friends" opens up your info to anyone in your networks - that means anyone in your city, your high school, your college, a professional organization you listed, etc.

You can also block certain groups from seeing these sections, too. On any item that offers an "Edit Custom Settings" option, you can click that link to display a pop-up box where you can choose people or lists to block (see where it says "Except these people"). If you haven't made custom lists as explained in step 1 above, you can enter individual names here instead. (Sorry, mom, dad, boss - this is where you get blocked.)

Step 3: Who Can See Your Address and Phone Number

Did you list your address and phone number on Facebook? While that's a handy feature, you may not want everyone you friended to have this information. To access this configuration page, you follow the same steps as above in step 2 to display the Profile Privacy page. You'll notice that the page has two tabs at the top - click on the one that reads "Contact information."

As previously described above, you can again use the drop-down lists provided to designate who gets to see what and/or block certain people or lists from viewing this information. The sections on this page include "IM Screen Name," "Mobile Phone," "Other Phone," "Current Address," "Website," and your email.

Step 4: Change Who Can Find You on Facebook via Search

Sick of getting friend requests from old high school pals? While for some the beauty of Facebook is that it lets you reconnect with everyone you ever knew throughout your life, others find this intrusive and annoying. You're not friends with any of these people anymore for a reason, right?

As it turns out, you can still enjoy Facebook without some folks ever knowing or finding you thanks to the search privacy settings.

Click on the "Settings" menu on Facebook's homepage and then click "Search" on the following page. You'll be taken to a Search Privacy page where you can specify who gets to find you on Facebook. Want to be wide open? Change the "Search Visibility" drop-down box to "Everyone." Want to keep it a little more limited? Select "My Networks and Friends," "Friends of Friends," or "My Networks and Friends of Friends" instead. Don't want anyone finding you on Facebook? Change it to "Only Friends." That means only the people who you've already friended can find you in a Facebook search.

On this page, you can also configure what information displays when your info is returned as a search result (e.g. your profile picture, your friend list, etc.). In addition, you can check and uncheck the boxes for network-based searches too. For example, if you don't want anyone from high school to find you, uncheck the box next to "people in high school networks."

Step 5: Stop Sharing Personal Info with Unknown Applications

Remember when we told you about what Facebook quizzes know about you? Using Facebook's default settings, you're unknowingly sharing a plethora of personal information (and your friends' info too!) with various Facebook applications and the developers who created them. The problem is so bad that the ACLU recently created their own Facebook Quiz to demonstrate how much information an app has access to.

It's time to take back control! From the Facebook homepage, hover your mouse over the "Settings" menu and choose "Privacy Settings" from the drop-down list. On the next page, click "Applications" then click the tab that reads "Settings" which is next to the "Overview" tab. (Oh, and if you want to really be freaked out, read that overview!)

On this page, you can check and uncheck boxes next to your personal information (picture, education history, wall, religious views, etc.). This controls what the applications your friends are using can see about you. Yes, your friends' apps can see your personal info if you don't make this change! Believe it or not, you don't have the same control over your own apps. The best you can do is head over to the Applications page and delete the apps you're not using anymore. (Use the "X" to remove them.) You see, once you authorize an application, you're telling it that it's OK to access any information associated with your account that it requires to work. While some developers may only pull what's actually required, many others just pull in everything they can. Scary, isn't it?

Conclusion

While this is by no means a comprehensive guide to Facebook security and privacy, these five steps can help you get started in creating a safer, more secure, and more private environment on the social network.

However, if you choose not to take any precautions, then you'll only have yourself to blame when an errant wall post or naughty photo makes its way online and straight into Grandma's News Feed, or worse, your boss's. These days, it's better to be safe than sorry, so go ahead and delve into those settings!

Unfortunately, there seemed to be a problem with the new security feature: it wasn't working...or at least, so it seemed. As it turns out, the problem was that users weren't informed as to how to properly activate the anti-phishing protection, an issue that points to a poor implementation of what could and should have been a major breakthrough in mobile computing technology.

Although Apple touted the anti-phishing protection back in March when they announced their 3.0 update, the new feature didn't actually materialize until this month when the company released the OS 3.1 iPhone/iPod Touch software. According to Apple, the anti-phishing protection feature will display an on-screen warning message when you attempt to visit a known malicious website.

Once the update was released, security researchers and other Apple enthusiasts began testing the new technology. The results were immediately disappointing. "I've not been able to get it to block anything," Michael Sutton, vice president of research at security firm Zscaler was quoted as saying. He had been testing the feature using known phishing websites identified by the anti-phishing database hosted at PhishTank. The Mac Security Blog also found after extensive testing that it simply "does not seem to work." MacWorld, however, found that the feature worked sometimes, but the inconsistency hinted that the technology was not "ready for public consumption," they reported.

What gives? Did Apple really release a broken feature? Were they even aware of the problem? Blogger Jim Dalrymple of The Loop decided to go straight to the source: he asked Apple.

Apple Says "You're Doing it Wrong"

Apparently, this was not a case of the anti-phishing technology being broken. It was a case of everyone simply "doing it wrong." As it turns out, in order for Safari's anti-phishing database to update, there are a few particular steps that need to be followed, explained an Apple spokesperson. After updating the phone to the OS 3.1 update, users need to do the following:

1. Launch the Safari web browser.
2. Connect to a Wi-Fi network.
3. Charge the iPhone with the screen off.

The spokesperson added that for "most users" this process should happen automatically when they charge their phone. We would have to disagree. "Most users" don't launch the Safari browser prior to charging their device - if anything, they close down any open applications before plugging in the phone to charge.

Poorly Implemented, Poorly Explained

If you follow the above steps, the feature will work. However, most users will never know to do this unless they happen to closely follow technology news and blogs. The general mainstream population - the very demographic Apple so craftily attracts via their billion dollar marketing campaigns - expects things to "just work." That is the Apple promise, after all.

Yet even on Apple's own website where they detail the various new features in the OS 3.1 update, there is no mention as to how the anti-phishing protection should be utilized. It simply lists that the feature exists. A helpful link to a "how to" guide would seem appropriate here or, at the very least, a footnote.

Having to perform the somewhat unintuitive steps to get the anti-phishing protection feature to function properly seems like an unusual miss for a company who generally makes things simple and straightforward. Why does it need Wi-Fi, for example? Apple claims that the Wi-Fi connectivity is required so as not to incur any additional data fees for the end user. But launching the browser? We almost wonder if it wouldn't have made better sense for Apple to implement the feature in the new iTunes update instead. The desktop software could retrieve the updated anti-phishing database from the internet upon launch and could then sync it to the iPhone or iPod Touch the next time it was plugged in. That would also alleviate another common problem with the current implementation - if the phone isn't plugged in long enough, the update won't complete and users will only be partially protected. On the other hand, the inclusion of the database via a sync would have ensured that all the data was copied over to the phone.

In the end, though, Graham Cluley, a senior technology consultant at Sophos, reminds us that maybe we shouldn't be too hard on Apple. "Many other smartphones don't offer even the most elementary form of anti-phishing protection to their users," he says. That may be true but, unfortunately, the way Apple chose to deliver their anti-phishing protection feature means that most iPhone users won't be protected either.

Twitter has acquired two other companies so far, that we know of. Search engine and sentiment analysis service Summize became Twitter's own search engine and Values of N sold its assets so engineer Rael Dornfest could be brought into the company. Here are ten other startups we think that Twitter should consider acquiring next. Which kind of company would you most like to see become part of Twitter itself? We've got a poll below.

Some of these we think are likely acquisitions, some less so. In making this list we considered both functionality that would be helpful to have added to Twitter's own site and technology that would be worth buying instead of just building in-house. Whenever a platform company builds technology that a number of other startups offer, there is a risk of scaring other people away from investing in development that the platform could just reproduce. Acquisitions of startups on a platform probably increase the appeal of development though, as it's a chance to get in on the game.

Quite Likely, if It Hasn't Happened Already

Bit.ly is the most full-featured and popular URL shortener on the market right now and was recently selected as Twitter's own shortener of choice, dethroning TinyURL. Bit.ly offers all kinds of smart analytics, from real-time click tracking to semantic analysis of topic keywords from the links that people tweet.

One trusted industry source speaking on the condition of anonymity told us that Bit.ly servers "were moved into Twitter's racks months ago in preparation for this change" [of becoming the default shortener]. Bit.ly is becoming too important to Twitter to keep that functionality outside the company's own shop and the two companies share some investors. We will not be surprised at all if a Bit.ly acquisition by Twitter is announced sometime in the near future.

Could Happen...

Tweetmeme is another fast growing Twitter analytics service that tracks sharing on the service. With another chunk of new features just added today, the service is looking a whole lot like "Feedburner for Twitter" but with even more viral distribution possibilities. The Tweetmeme API is quite interesting and could complement Bit.ly quite well.

Twitpic is a popular way to share images on Twitter. The site faces a strong challenge from ImageShack's YFrog, but independent Twitpic would be a cheaper acquisition and is already well known among Twitter users. (Twitter should probably look at Enjoysthin.gs; it's got the best user experience.) An increase in imagery on Twitter would probably offer the company a lot more advertising real-estate.

Tweepz is a fascinating Twitter search engine that acts like a directory that lets you parse your results using various metrics gleaned from Twitter. Check out this search, for example. Twitter could benefit from making this kind of search available to users, advertisers and researchers - and Tweepz has already built it. See also Twazzup, another company doing interesting things with Twitter data.

Longer Shots

An iPhone app company could be a good buy for Twitter; there's certainly plenty of options. M.Twitter.com is a good mobile service already but someone specializing in super high-quality Twitter apps for the iPhone, Android and Pre could be good to bring in house. It could be AteBits, makers of Tweetie. There may not be enough reason for Twitter to buy one of these companies, though.

A desktop Twitter app company could help Twitter increase user engagement. Many of the most serious Twitter users (though not all) swear by desktop access. Twitter could acquire the most popular and arguably most innovative desktop app, Tweetdeck, or it could bring Seesmic in house. Tweetdeck would be cheap and shares investors with Twitter. Desktop apps may be too limited in appeal to be a compelling acquisition target.

Geo-location could be a good feature to add to Twitter. Search by user location could be made much more meaningful and the list of things that could be done with it is very long. Brightkite is popular and well developed, Shizzow is pretty and wouldn't be expensive. On the other hand, browsers themselves will likely all become more location aware in the near future and Twitter may be satisfied with its current location data.

A semantics company could bring structure to the Tweets, making them more useful and easier to advertise against. Right now links Tweeted are semantically analyzed by Reuters' Calais and sent to Bit.ly, but we wouldn't be surprised if Twitter was interested in scooping up a small semantics shop and helping it scale so that analysis was being done in house. Twitter may feel like semantics don't need to get that close to consumer users, though. (Disclosure, Calais is a ReadWriteWeb sponsor.)

Topify is a widely loved service that intercepts your new Twitter follower notification emails and sends you much more useful ones. It's great but probably too easy for Twitter to just reproduce itself.

FriendFeed plus Twitter would be a match made in heaven. It would be an engineering powerhouse. It would be a step towards mainstream user adoption of FriendFeed, a service that can't make up its mind which end of the sophistication spectrum it's targeting. It's also quite unlikely to happen. If there's one related startup we can imagine turning down a Twitter acquisition offer, it's probably FriendFeed. (Though the investment-laden and highly ambitious OneRiot is a close second.) Nonetheless, it would be awesome if FriendFeed's cross-network aggregation, threaded conversations, groups, media support, search and more joined forces with Twitter.

Ultimately, it may be most likely that Twitter's next acquisition will be something vapid. A service that aggregates shopping Tweets, or celebrity Tweets, or something else that will fall short of taking advantage of the Twitter platform's huge potential to change the world. Twitter staff makes relatively simple use of its own service, so hoping that it will acquire companies that make it all the more powerfully sophisticated may be an early adopter's pipe dream. [Update: After some discussion this afternoon, I am thinking it's time to reconsider this position I've held for some time. Twitter staff is not full of dummies, I'm sure, and it has probably been inappropriate of me to write as if that's the case.]

Maybe not, though. We wouldn't be shocked to see Twitter pick up at least a few of the companies above. What do you think? Are there other services you'd like to see become part of the Twitter team even more than the above? It's a wild and woolly micro-content ecosystem out there - anything could happen.

You can find ReadWriteWeb on Twitter, as well as the entire RWW Team: Marshall Kirkpatrick, Bernard Lunn, Alex Iskold, Sarah Perez, Frederic Lardinois, Doug Coleman, Jolie O'Dell, Dana Oshiro , Lidija Davis and Steven Walling.