Wikis, Students, and Clashing Personalities...

I have never heard of Wikis before this week. Of course I have repeatedly used Wikipedia in the past, put I never realized that you could set up your own and edit the information.
I do understand now why professors look down on Wikipedia as a viable source of information. If anyone can edit it, how can you ever be sure it's correct?
As far as setting up my own, I think it would be a fun experience to set up a private Wiki for my classroom, where they could edit each other's material and converse about a project. I think a Wiki would be more efficient than a blog when it came down to a project.
I don't believe conversing in learning communities to be MORE effective than traditional instruction, but I do believe it to be a necessary part of teaching. Conversation helps people retain information, and relate it off several people's opinions.
I'm not sure you could prove if learning communities were more effective than classrooms. I suppose you could judge online students' scores versus traditional students scores, but then, you have to make sure to give the exact same assignments and testing standards (which alot of professors don't do with their online classes).
I strongly agree that your learning type is directly linked to your personality type. I think knowing my students personality types would help me become a better teacher, making sure I could reach every student.