Quotidian Hell 
 
Look what The Internet hath brought us today...
11 Jul 2007

Technosphere is back on-line.
TechnoSphere is a 3D model world inhabited by artificial lifeforms created by WWW users. There are thousands of creatures in the world all competing to survive. They eat, fight, mate and create offspring which evolve and adapt to their environment.
Not quite as interesting as it sounds.

14.08.07: Hmm, just at the moment it seems to have gone down. Here's their Wikipedia entry.