Some additional repos to consider:
BitWiki — Revamping KinoWiki. BitWiki is based on KinoWiki, a ligthtweight PHP5 and SQLite wiki engine. BitWiki is being developed to revamp KinoWiki, Web standard W3C-Valid HTML + CSS, more PHP5 optimized.
mediawiki-peerreview — A peer-review extension for the MediaWiki wiki engine
Nazg-Gul/gate — Wiki engine and Web-interface for WebTester server
Once a week...... I send out a list of most interesting PHP libraries and apps.
Want to get it?