WhitePages.com People Search – Find a person’s address with the free results. Accurate information. Must pay for premium information.
Facebook People Search – With over a billion people on Facebook you’re more than likely to find the person you are looking for on Facebook.
YellowPages.com People Search – Search by name to find someone. Free accurate address information. More detailed information you must pay.
How To Find People on Twitter – Type the person’s name or username into the search box at the top of your twitter.com Home timeline
Find People on LinkedIn – To search for a specific person on LinkedIn, type his or her name into the search bar at the top of any LinkedIn page.
YourFamily.com – Use the bulletin board to search for lost relatives and missing people by name or keyword and check to see if someone is looking for you.
ClassMates.com – Find people you went to school with. Requires registration.
Pipl.com – One of the largest identity repositories in the world, this site makes it easy to get contact, social and professional information about people.