A wiki can be deployed for a particular topic or on a per group basis. Multiple pages can be easily created and linked together, to form a simple website structure. Text and media elements can be inserted on each page. Project teams can create and edit the text within each page. Every wiki has a rollback (history) functionality, to track and reverse changes. Combine a wiki with a discussion forum to allow prior discussion of page edits. Comments can be added to each page, and each wiki can be assessed (either formative or summative) using the Grade Centre.