This could be a repost, but i love it http://www.myheritage.com/
Use BugMeNot.com for a log in once you upload a picture for it if you don't fancy registering. Works better with higher res pics too...
Apparently I'm some sort of ultra sexy beast, as I have a 52% match with Angelina Jolie; Americas voted sexiest woman, and 49% match with Britney Spears... I also have a 44% match with one of my idols, Aaliyah :O
As for blokes though I look most like Lenny Kravitz - I'm the dude on the left then
Post yours STAT!