PmWiki

Organize and store information. Stores documentation in a book like fashion.

Wiki system with complex functionality for simple integration and a superb interface. Store your knowledge with style: Use django models.

Easy to use, lightweight, standards-compliant wiki engine with a simple syntax allowing reading the data outside the wiki. All data is stored in plain text files, therefore no database is required.

Wiki software package that powers Wikipedia and all other Wikimedia projects, serving hundreds of millions of users each month.

Complete markdown-powered wiki contained in a single PHP file.

Wiki CMS Groupware with the most built-in features.