- Wikis are collaborative websites that allow users to easily add and edit content. They were invented in 1995 by Ward Cunningham to facilitate online collaboration. - Wikis get their name from the Hawaiian word meaning "quick" or "fast". Cunningham named it after the Honolulu airport's Wiki-Wiki shuttle buses. - Wikis can be used for a variety of purposes, including collaborating on documents, creating encyclopedias like Wikipedia, and facilitating knowledge sharing in educational and business settings. Many universities are adopting wikis to encourage collaboration between students and faculty.