A Wiki is a tool for people with no technical knowledge to change and create web pages. Wiki was designed specifically for researchers and lecturers to collaborate on documents, share information and create teaching materials.
Wiki uses the Radeox engine and hence has the same markup as mainstream wiki tool like SnipSnap. It has been implemented in such a way as to allow Radeox based wiki macros to be used. (eg Radeox RSS Aggregator). Wiki is designed and developed at the Centre for Applied Research into Educational Technology (CARET) at Cambridge University.