WordPress MU

There's a rumor that wordpress.com has moved to a nginx front end to maintain its opensource brand philosophy.

http://fatalerror.wordpress.com/2008/04/14/goodbye-litespeed-hello-nginx-wordpresscom/

Server says Wordpress.com is now running off Nginx 0.6.29

http://whois.domaintools.com/wordpress.com

I confirmed this for sure here:

http://zotagsearch.com/blog/2008/06/04/wordpress-uses-nginx-and-litespeed/

they use both!!! read the post