What is a Wiki?

• a technology for collaborative creation of internet and intranet pages

• Wiki-Wiki is hawaiian and means fast

Principles

• Fast - fast editing, communicating and easy to learn

• Open - everybody may read and edit everything

• Uncomplicated - everything works in a standard browser

• Easy - no HTML knowledge necessary, simply formatted text

• Simple - Content over Form (content counts, not the super-pretty appearance)

• Secure - every change is archived, nothing gets lost

• Interlinked - Links between pages are easy to make

• Flexible

  • Personal Information Management, Knowledgebases, Brainstorming
  • Collaboration, Coordination and Communication platform
  • Creating documentation and slide shows ;)
  • etc...

For details see HelpForBeginners.