Wiki Drawing Tool

This seems like an interesting idea, although I haven't explored it much. I found it in the Design Research News, an e-mail publication that I receive.

http://www.wikidraw.org/wiki/index.php/Main_Page

DESIGN RESEARCH NEWS
Volume 10 Number 7, Jul 2005
ISSN 1473-3862
DRS Digital Newsletter http://www.designresearchsociety.org