MoinMoin is an advanced, easy to use and extensible WikiEngine with a large community of users.

A wiki is a tool that allows many users to collaborate on generating and organising content. A wiki is usually hosted on the web so that different people can connect through their web browsers to collaborate. However you can also use a wiki locally on your own computer to help you stay organised, structuring your information with categories, sub-pages and hyper-links, just like on the web. You can even create attachments to your pages, like pictures or word processing documents you are working on for a specific project.