QuickVoice is a fully featured audio recorder for the iPhone. I'd never heard of it but Sarah Perez likes it and, after looking, I'm about ready to buy it too. It looks awesome!
SnapDat is an iPhone digital business card exchanging system. Sarah reviewed it while at DEMO and called it serviceable but not great. Apparently it's good enough because she's still using it.
Frederic and Sarah are big fans of PixelPipe on the iPhone. It lets you post to multiple sites and is similar to Flickit above.
Productivity
The Morning Coffee plug-in for Firefox lets you set up a list of tabs to open with a single click. It has helped me continue to use websites I might have forgotten about. I'm very thankful for it. Now that I think about it, I should add Basecamp there. Maybe then I could remember to use the darned thing.
Doomi is a handly little Adobe AIR to-do list. It's simple. I tried it and I like it.
DestroyTwitter is an AIR Twitter client that Phil started using more than a month ago and is still using today. When I questioned his choice of clients he said: "Have you used Destroyflickr? It's really amazing.. and DestroyTwitter is the same way.. something about the smooth transitions, the intuitive interface, and its unobtrusiveness appeals to me more than other products."
Frederic and Sarah are loyal users of this service and I just started using it today. We reviewed it 2 weeks ago but it looks like a keeper. (See picture on the right.) If you're insane and want constant stimulus, which we all are and do here at RWW, give it a try.
Phil is still using ClikBall to find and share links. I wrote a very positive review of ClikBall here but found that I didn't know very many people who were using it. It didn't pass my test but it did pass Phil's.
PostBox is a desktop email manager built by a team that includes the creator of Firefox's Thunderbird. TechCrunch has the best review of the service.
Looking for the best blogs on a wide variety of topics? Alltop is a good place to start. This Greasemonkey script adds buttons to grab all the blogs in a section of the site as an OPML file and to search inside that section. It's Phil Glockner-approved.
Enjoysthin.gs is a very visual social sharing service. The user experience is fantastic. We called it a dazzling new way to share multimedia and I've been visiting it every day since then, thanks to the Morning Coffee plug-in described above. It's great for research and inspiration!

We'd love to hear which apps, plug-ins, scripts, etc. our readers have tried for a little while and found to have some sticking power.
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+1 for instapaper and tweetie. Those are pretty much the only apps I use on the iphone. Also, +1 for enjoysthin.gs, but I made it, so that doesn't count.
I've also recently really been getting into friendfeed. Something just clicked with me recently. It's not a new site, but still...
RWW is on my list! Since I started following you on Twitter and reading your blog, I have learned so much. I've also learned how incredibly innovative the folks out there doing that developing thang are. THANKS!
I think FrontPocket is still pretty useful. It's an iPhone app for Backpack from 37Signals.
Also, I prefer Tweetville over Tweetie and the evernote app for iphone.
For Mac OSX, I love DestroyTwitter and couldn't live without Fluidapp.com, an app that creates SSBs out of any site you want.
Great list. Thanks for collection. I like Google Preview and Instapaper very much.
See more Web Apps in my blog: http://tr.im/hUFh
Thanks for the mention! I'm glad you're getting some use out of DestroyTwitter :)
Gee, just when you think you've got some of apps mastered, more come along. Twitter has reached a fever pitch, it'll be interesting to see how it maintains it's edge.
I gotta check out the Destroy Twitter app, the name alone sounds great!
My main focus is how to incorporate these apps with a blog to make the blog more sociable.
Great article!
I should have mentioned that SnapDat has a new, improved version since my last review. It lets me use my own logo now, among other things. I will be testing the update at Web 2.0 Expo.
What a great collection! Google Preview is my favorite of that list.
OH man, on my list--White pages iphone app is so good.
and of course the big ten basketball highlights app!
Great list...
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I think FrontPocket is still pretty useful. It's an iPhone app for Backpack from 37Signals.
Also, I prefer Tweetville over Tweetie and the evernote app for iphone.
Gee, just when you think you've got some of apps mastered, more come along. Twitter has reached a fever pitch, it'll be interesting to see how it maintains it's edge.
Some great classics in there and a few I hadn't heard about. I really appreciate this series of posts. Nice to hear what sticks rather than just the flavor of the day.
The Greasemonkey script for real-time Twitter search on top of Google results is an especially nice find.
I've also been enjoying Readability lately to cut down on the noise while reading anything outside of my reader: http://lab.arc90.com/experiments/readability/
my life is pretty much summed up by 3 apps : backpack (37 signals) to organize everything in my life, facebook (i know, too obvious) to communicate and keep up to speed on everyone, and snappages to share pics, blog, etc with my friends and family on our web site. but yelp and google voice, as mentioned above, are absolutely amazing.
30 days is too short a time! the following have crossed the one year mark for me:-
HyperOffice (1 year for mobile collaboration and access to corporate mail, calendars etc)
Power Gramo (1 year to record Skype Calls)