Resource from the TIE Conference which includes online lessons, Kid-safe Web sites, WebQuests, rubrics, assessment tools and more all free.
http://hprtec.org 

Web Quest Handout

There are additional websites that promote webquests and you may find them interesting.

http://edweb.sdsu.edu/courses/edtec596/about_webquests.html

http://www.edhelper.com/

http://webquest.sdsu.edu/webquest.html

http://webquest.sdsu.edu/webquest.html