if you are tired of flickr, del.icio.us, and youtube, other fun things to do on the 'net...

dappit
http://www.dappit.com/
extract content from websites

google image namer
http://images.google.com/imagelabeler/
Basically, it's a fun way for google to help improve their image search results.

and of course, 43places.
http://www.43places.com