Howtoforge posted a guide about installing Nginx on CentOS 5.5 with SSL, PCRE, GeoIP, Zlib, Gzip and DAV Support

Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can compile and install Nginx on CentOS 5.5 server with SSL, PCRE, GeoIP, Zlib, Gzip and DAV support.

  Install Nginx On CentOS 5.5 With SSL, PCRE, GeoIP, Zlib, Gzip And DAV Support