"A Wiki engine is a type of collaborative software that runs a wiki system. This facilitates web pages being created and edited using a web browser. This type of software is usually implemented as an application server that runs on one or more web servers.
"Wikis try to make it as simple as possible to write and share useful content, using intuitive page naming and text formatting conventions. Wikis are usually (but not always) wide open and assume a cooperating community. However, with spam bots prevalent, most wiki engines have lots of anti-spam measures such as page permissions, Access Control Lists, host blocking, blacklists, and CAPTCHAs in place."
