![pbwiki simple wiki](https://i0.wp.com/www.kevinryan.com/wp-content/uploads/2009/02/pbwiki.jpg?resize=228%2C70)
If you don’t know what a wiki is, try the wikipedia entry for wiki (English, Japanese).
pbwiki is one of the simplest sites to set up a wiki. It is designed to be as easy to make as a peanut butter sandwich (pb). Now, if you are using Moodle, there is a built-in multilingual wiki. But if you aren’t, this is a great alternative.