Pretty cool FREE Dating / Social Networking script..
 

*Warning*

Just because I like it doesn't mean you will. By downloading the following script you agree to not hold me liable for any of the following: Thinking it sucks, boredom, wasted time, blown servers, hacked anything, heart attacks, poison ivy, or fleas.

http://www.phpizabi.net/

Interesting, it's quite different (more advanced) from the premade scripts out there.