Here's another People search engine that may help you in your search efforts. While Pipl.com remains one of my favorites I thought I'd introduce you to another new people search tool called Whoozy

Whoozy features both a person and company search features.  An interesting feature I like about whoozy is that you can change the search settings to opt in (or out) of search engines to popular social networks.  Check it out and try it!

Bonus:  You can also add it to your Firefox as a search plug-in on the browser!