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Google just announced that it will now offer a new option for YouTube users who want to share their videos with a large group of viewers without having to make the video either private or fully public. Currently, there is a 25-person cap on YouTube's private sharing option, which makes this feature unusable for anybody who wants to share a video with a larger class or club, for example. Now, YouTube users will be able to choose an option that is already a standard feature on many other content sharing sites: unlisted videos.

A new application aims to put users back in control of their private data stored on the increasingly public social networking site, Facebook. With "The Green Safe" app, Facebook users can now export their profile data for offsite storage on Green Safe's servers. Data can then be purged from Facebook itself, allowing only friends to view profile information by way of a profile page tab labeled "My Info."

Facebook's Open Graph API is getting some negative attention in Washington today. Four democratic U.S. senators, Charles Schumer, Michael Bennet, Mark Begich and Al Franken, sent a letter to Facebook's founder and CEO Mark Zuckerberg earlier this morning, asking for clarification about the privacy implications of Facebook's latest initiatives. Specifically, these senators complain about the company's new policy to allow third-party developers to store data for more than 24 hours, Facebook's Instant Personalization feature and the social network's new initiatives that make more of its users' personal information public by default.

Now that Facebook allows developers to store data for more than 24 hours, social media analytics firms like Sysomos are finally able to include public updates from Facebook users in their databases. Sysomos began surfacing this data on some of its customers' accounts yesterday and plans to roll these new features out to the rest of its users soon.

Blippy, the controversial site where the over-sharing, Web-connected generation can link their credit cards and share their purchases has just come under fire from numerous tech blogs as it has been discovered that people's credit card numbers are now available on Google.

The site's value has been hotly debated since its launch with some saying it's an incredible recommendation service while others say it's a privacy disaster waiting to happen. Interestingly enough, it was featured yesterday on the New York Times, where that same question was posed to readers.

"Safety is Facebook's top priority," writes Facebook's Chief Security Officer Joe Sullivan on a company blog post introducing the social network's new Safety Center, a revamped help portal featuring educational information for users, with sections dedicated to parents, teens, teachers and law enforcement professionals. It's a somewhat ironic statement from a company that recently prompted its 400-plus million users to accept "recommended" changes that opened up their data - including status updates, photos, videos, links and friend lists - to a public audience, revealing details that many users assumed were private.

Around the same time as the "privacy debacle," as we like to call it, unfolded, Facebook also announced a "Safety Advisory Board," a group whose purpose is to review safety-related procedures and documentation as well as make suggestions regarding best practices and other procedures. How about this safe practice, Facebook: don't publicize people's private information?

Later today, Google will ask all Google Buzz users to reconfirm their privacy settings. Since the launch of the service, which was quickly overshadowed by a major controversy around the default privacy settings, Google has made significant changes to the Buzz start-up process and privacy settings. A lot of people started using Buzz long before these changes were rolled out, however. Starting this afternoon, all existing Buzz users will see a confirmation screen that summarizes their current settings and gives them the option to change these settings, as well as the option to turn off Buzz altogether.

Without a doubt, location-based services and social networks are one of the hottest topics on the Internet right now. Foursquare, Gowalla, Loopt and many others are vying for users, but strong privacy concerns are still holding back the mainstream adoption of these kinds of services. Rally Up for the iPhone is a new location-based social network that puts a very strong emphasis on privacy and also features some innovative new concepts.

Google Analytics offers site owners an easy and free way to gather highly detailed analytics about their websites' visitors. A lot of people, however, don't feel comfortable with the idea that Google can track their every move on the Internet. After all, even if you don't use any Google product yourself, you will still send personal data about yourself to Google through programs like Google Analytics. According to an announcement the Google Analytics team just posted on its blog, you will soon have the option to opt out of being tracked by Google Analytics.

Do you like social aggregation and tracking services like FriendFeed, Google Buzz and Cliqset? If so, there's another startup launching today that wants your attention: Strings. This service is focused less on social content sites like flickr and YouTube (although supported) and more on traditional online activity like clothing purchases from JCrew or Saks, groceries from Amazon Fresh, beauty products from Sephora and a slew of other purchases from web-based shopping sites.

But before you rush to sign up with yet another activity aggregation service, it may be time to pause and think. Do the benefits of seeing your friends' purchases on sites like Strings and the online shopping tracker Blippy outweigh the risks of handing over login credentials to these third parties?