SwarmSketch - Collective sketching of the collective consciousness. Requires Flash. [MI]
The avatar versus the journalist. Ant farms, Bombay, the neolithic revolution, and Wikipedia.
iNeighbors is like groupware for neighbors. The site lets members define neighborhoods and provides tools for meeting and talking to your neighbors, like posting reviews and building a mailing list. It sounds like MeFites want to meet people nearby, a desire this site is banking on. (via Smart Mobs)