Flickr started code.flickr, a place to get in contact with the Flickr development community, to keep up on the Flickr API and to get the latest news on the open source Flickr Uploadr or other projects.
You may know flickrvision and twittervision. If you like it, then check out TwittEarth.
Alert Thingy, a desktop application for FriendFeed built on the Adobe AIR, now also supports Twitter.
Gary Vaynerchuk announced his first book 101 Wines Guaranteed to Inspire, Delight, and Bring Thunder to Your World.
The Rather Difficult Font Game is a nice way to test your knowledge about fonts.
