These, I nearly had forgotten about. Glen revamped IT712 into a webquest format in 2003 and it has proved a big hit.
Webquest links:
WebQuests (Bernie Dodge’s website)
“This site is designed to serve as a resource to those who are using the WebQuest model to teach with the web. By pointing to excellent examples and collecting materials developed to communicate the idea, all of us experimenting with WebQuests will be able to learn from each other.”
http://webquest.sdsu.edu
Australian WebQuests
A bunch of web quests. The home link does not work. 
http://www.occ.act.edu.au/home/itpd/webquests/matrix.htm
Blue Web’n (New address as of April 14th 2006)
www.kn.att.com/ (Home)
http://www.kn.att.com/wired/wired.html (Webquest)