This article gives great examples of how to integrate wiki into the classroom. This article has great ideas that can be worked into a special education classroom
This is a wiki the students in my EDUC 521 Human Learning and Motivation course created as part of the course. They did not like the textbook, so I challenged them to put one of their own together and this is what they came up with.
Sites is Google's free tool to create custom websites. Similar to a wiki, you can develop the site by yourself or choose to collaborate with others on the creation and content of the pages.