Below is a link to the wikispace I created for myself which shows the technology in action. Although I haven't written much yet, I can create and post lessons and projects and invite other educators to comment and share their ideas. This would be a useful tool to have in a school community where teachers can have students collaborate on various projects. Students would communicate not only amongst themselves, but with students from other schools as well.
My Wikispace: http://saramc.wikispaces.com/