There is an open (free) course starting next week (as if you had nothing else to do) that you might be interested in regarding wikis:
- The Wikieducator Gives Back Online Workshop: registration, facilitators, participants (325 and counting), schedule
- Here are some Wikieducator tutorials that I put together recently if you want to check them out.
You are certainly encouraged to check out wikispaces as well (UVM Aguascalientes wiki started last year)
If anyone is interested in learning more about Wikieducator, reply to this post and will schedule a live session going over the basics in how to get started. I tend to favor Wikieducator due to the opportunities to collaborate with others as well as to build open educational resources. If you are already a member of Wikieducator, please sign my guest book located on my user page.