put your rest in memcache

briliant idea to use memcache and have less hits to the php and database (expensive)
I guess 99% of time the hits will be requested from memcache and only the new pages will be created
and pushed in memcache

example.com/rest/request-> nginx -> memcache -> php+apc- > select * from employees

http://blog.kovyrin.net/2007/08/05/using-nginx-ssi-and-memcache-to-make-your-web-applications-faster/