Curated Library of free and premium Knowledgebase and content management tools for teams.
MediaWiki is a free software open source wiki package written in PHP, originally for use on Wikipedia.
Gollum is a simple wiki system built on top of Git. A Gollum Wiki is simply a git repository (either bare or regular) of a specific nature.
Gather content that interests you, save what truly matters and share it with your team. Organize information into meaningful knowledge.
Guru is a knowledge management solution that keeps your customer-facing teams up-to-date and confident with trusted knowledge.