However, there’s a (nice) catch: you cannot view the full email but can always send a message to the person via their system.The best thing: unlike most of the sites here, this one is (so far) 100% free. Facebook Friend Search and Friend Browser (login required) What does it do: Facebook is free to search and also free to register (yeah, I bet you didn’t know this 🙂 ).
If you're ready to do some research, the following sites can greatly aid you in your quest to find information about someone online.
Online dating (or Internet dating) is a system that enables strangers to find and introduce themselves to new personal connections over the Internet, usually with the goal of developing personal, romantic, or sexual relationships.
An online dating service is a company that provides specific mechanisms (generally websites or applications) for online dating through the use of Internet-connected personal computers or mobile devices.
Dating does not include listings for all dating sites.
If you've done even the most rudimentary of web searches for a specific person online, you know that there are (unfortunately) a lot of websites out there that promise you everything for "just a small fee." The problem is that the same information they're promising to deliver to you as soon as you pony up a credit card number can be found online with just a little bit of digging and a little bit of patience.