Wikis are a simple, flexible tool for collaboration. They can be used for everything from simple lists of web links to building entire encyclopaedias. As an example, Wikipedia is the largest wiki in the world. In your own class it’s important to have a plan for your wiki so students know how it fits in with their learning. If it’s an individual wiki, will they be graded? Is it simply a staging area for group work that will be submitted as assignments later? Will you let the students be completely responsible for the work? How will you deal with offensive content? The great advantage of a wiki is that all edits are clearly visible and reversible.