Some additional repos to consider:
HTML5Wiki — HTML5Wiki is an easy to use wiki system, based on PHP and MySQL. The frontend is built using latest features from HTML5 and CSS3 to provide a rich experience to the end user. The backend itself is built around a generic versioning engine. Beside the default media types (articles), additonal types can be introduced easily.Similar
mediawiki-peerreview — A peer-review extension for the MediaWiki wiki engine
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.
Once a week...... I send out a list of most interesting PHP libraries and apps.
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