Don't forget the following: 1. Sit PHP-FPM behind nginx for a bank of persistent PHP interpreters. Access this via a Unix socket. 2. Use Memcache to cache yo

Don't forget the following: 1. Sit PHP-FPM behind nginx for a bank of persistent PHP interpreters. Access this via a Unix socket. 2. Use Memcache to cache your records. 3. Use APC to cache your PHP byte code.