- Citizendium - Wikipedia in vetted, edited form
- Wikibooks open content textbooks!
- Google Docs (check out this url for SSL access: http://tinyurl.com/2yudz2)
- Ray's Sample Course Syllabus Wiki (password=otel)
Another great wiki tool is Wet Paint!
Check out the new Online and Blended Learning Wet Paint site and add some resources or comments!