http://markjaquith.wordpress.com/2006/02/13/adventures-with-wp-cache2-apc/
Using APC (Alternative PHP Cache) and WP-Cache2 together causes some issues, the solution is to have APC not cache the wp-cache-config files.
http://mnm.uib.es/gallir/wp-cache-2/
The WordPress WP-Cache2 caching plugin / platform. The plugin caches WordPress to static files and then serves those files instead of rebuilding the pages on every request.
