Wiki hilsz.com: APC

http://pecl.php.net/package/APC

http://php.net/manual/en/book.apc.php

http://www.lecentre.net/blog/archives/1311

http://rtcamp.com/wordpress-nginx/tutorials/php/apc-cache-with-web-interface

http://www.if-not-true-then-false.com/2012/php-apc-configuration-and-usage-tips-and-tricks

http://docs.moodle.org/22/en/Installing_APC_in_Windows