Another quick collection of found stuff:

Stigmergy
Karl Schroeder picks up, and riffs on, my Stigmergy essay and Joi Ito's Emergent Democracy.
wx3pa
Sam Ruby has mocked up three paned news aggregator using using ActivePython, wxPython, and Mark's ultra-liberal RSS parser. An amazingly small amount of code.
EasyRGB
EasyRGB is a web based tool for finding color complements and harmonies. [via Zeldman]
MSDN
Dare Obasanjo has an article on MSDN entitled Building a Desktop News Aggregator. I fount this article because I started getting entries in my referrer logs from MSDN, which tends to raise an eyebrow. Turns out Dare included a link to Aggie in his story. Thanks Dare!