I do not work for Facebook, nor have I ever, but they do have some pretty neat things PHP-wise on their open source section of the site. http://developers.face

I do not work for Facebook, nor have I ever, but they do have some pretty neat things PHP-wise on their open source section of the site. http://developers.facebook.com/opensource.php http://developers.facebook.com/opensource.php Particularly, Thrift is what they use to use PHP on the front end of the site to communicate to servers running C++ and Erlang environments. At least, thats what I've heard.