What+is+a+wiki?

__Definition__
A [|**Wiki**] is website that is easy to create and update. It is an incredibly useful tool for collaborative writing, pooling knowledge or exchanging ideas.

__Background__
The word "Wiki" comes from the Hawaiian phrase "wiki wiki", which is commonly used to indicate something fast. The first wiki ever made was WikiWikiWeb, an attempt to make an easily updatable website about certain trends in software development.

Different wiki services offer different features, although they commonly include the ability to compare previous versions of a page, discuss issues prior to making changes, track who edited what and when, and manage so only invited members can edit the content. Probably the most well known __public wiki__ is Wikipedia, an online encyclopedia. Jimmy Wales, who founded Wikipedia in 2001, says, wikis are helping young people develop “writing skills and social skills by learning about group consensus and compromise—all the virtues you need to be a reasonable and productive member of society.”