Just finished here (http://blog.kovyrin.net/2007/08/05/using-nginx-ssi-
and-memcache-to-make-your-web-applications-faster/) my detailed
description of how we cache rails sites in our project - this idea
allows me to handle hundreds of queries with one server running pretty
slow (yeah! it is slow even after all optimizations on MySQL side and
lots of tweaks in site’s code) Ruby on Rails application.