Five Best People-Search Engines

Need to do a little online detective work? Track down anyone from long lost schoolmates to the new friend whose number you've lost with this assortment of powerful people-search engines

1. Pipl - http://pipl.com/ - Pipl's query-engine helps you find deep web pages that cannot be found on regular search engines.

Pipl is not just about finding more results; we are using advanced language-analysis and ranking algorithms to bring you the most relevant bits of information about a person in a single, easy-to-read results page.

2. Google - Needs no explanation - However, here is some

One of Google's strongpoints is that you can use additional search parameters that are unavailable at the other search engines. For example, it's impossible to search for "John Smith classic car restoration" to find an old car-obsessed friend of yours when all you can type in is Last Name, First Name. Additionally, Google can sometimes find incredibly obscure references to a person

3. Facebook - http://www.facebook.com/

Facebook is principally a social network, but its the first stop for many people searchers due to its widespread popularity. By Facebook's count, 150 million active users frequent the site, about a third of which are in the United States.

4. Spock - http://www.spock.com/

Spock is another people-search engine that relies on multiple sources and aggregation to cull as much information as it can about a subject. In addition to indexing information from various news sites and social networks, Spock has a variety of notifications options available.

5. 123people - http://www.123people.com/

123people has a broad reach, delving into blogs and public profiles to increase your chances of finding who you're looking for. 123people is a strong people-search engine, but one of the best pieces of functionality available to 123people searchers is its email notification feature, which sends out an email alert whenever the results of a specific search changes.

http://lifehacker.com/5138427/five-best-people+search-engines