Building the Mesh, Tradera API, Ringside social-application server, filtering activity streams and Twitter service Quotably.
4 posts in March 2008:
Blogging politics, lots of .NET types, custom search tips and Slideshare
Yahoo semantic search, YouTube platform, OpenSocial Shindig and Twine
Authentication, Social network trends, IE8, A Wordpress social network platform, RSS filtering, OpenSocial and FriendFeed