Wiki

Wiki is a term coined by Ward Cunningham. It is a collection of interlinked pages, where you can add and modify any information. Any user is freely capable of editing any of the wiki pages.

Ward Cunningham in his Wiki Way:Quick Collaboration on the Web says that there are three parts to the essence of a wiki


 * A wiki invites all users to edit any page or to create new pages within the wiki Web site, using only a plain-vanilla Web browser without any extra add-ons
 * Wiki promotes meaningful topic associations between different pages by making page link creation almost intuitively easy and showing whether an intended target page exists or not.
 * A wiki is not a carefully crafted site for casual visitors. Instead, it seeks to involve the visitor in an ongoing process of creation and collaboration that constantly changes the Web site landscape.

What makes a wiki so useful is that everything on a wiki is just "a click away"