I knew I liked Wikipedia, but until recently I did not fully understand that the software platform on which Wikipedia is built – MediaWiki – is a terrific collaboration tool that we should be using for the business of education.
MediaWiki also is free and open in the sense that anyone can use it with practically no technical barriers to get in the way.
District 7 now has a Wiki. It is called 7Wiki, and it can be seen here. You are welcome to create an account and begin using it.