If you're reading this, it's thanks to Nginx.  As of about midnight last night, all content on SystemOverlord.com is being served up by Nginx.  I did this for two reasons: Nginx has a much smaller memory profile than Apache, which is important when running on a 512MB VPS, and Nginx's preferred PHP path is through a FastCGI interface, which allows me to run separate PHP FastCGIs under different users for each application on my server.  Privilege separation for different webapps has always been a big thing security-wise, and I'm glad I was able to get it going with a minimum of fuss.  Wordpress, Nginx, MySQL, and Ubuntu Server powered, all on a Linode VPS!