Pipl
Pipl is a new search engine for people. It is unique in that it isn't an address or email search, but instead searches for the person throughout the Net. Results will show quick facts, which for me are remarkably accurate, contact details which show my last three addresses, web pages, and links to places that the person has posted to. If you are one of those people who likes to Google folks to know more about them, then you probably want to start using Pipl because it is far more comprehensive.