If you need to do a little bit of sleuthing, the Web can be a fantastic resource. Track down an address or a phone number, find a long-lost school friend, or simply verify information with this list of the best eight people search engines on the Web. All of these search engines are hyper-focused on finding only people-related information. NOTE: at the time of writing, all of these resources were free. If you come across something that is NOT free, please let me know.
Pipl is a people search engine that scours the Invisible Web
for information; basically, what that means is that you're going to get more than just the usual search engine results for whatever name you might be searching for. Pipl searches across social networking
services, search engines, databases, etc. to find tidbits you might not usually find on a rudimentary search.
Wink searches across what you would find using a regular search engine as well as across social communities, online profiles, etc. You can also use Wink to manage your online presence by creating a Wink profile. You can "claim" and add various places where you might be active online, and manage them all in one convenient place.
You can use Facebook to search for people you went to high school and college with, as well as work colleagues, friends from elementary school, and non-profit organizations. Facebook is also great for finding people in specific geographic locations living in your local area that you might not know about, as well as any kind of association, club, or group.
PeekYou adds an interesting twist to the world of free people search engines; it allows you to search for usernames across a variety of social networking communities. For instance: say you would like to learn more about the person who uses the handle "I-Love-Kittens"; you can use PeekYou to see what else they might be doing on the Web under that username.
Search by user name, email address, or name at yoName; they search through a variety of unconventional sites, such as Deviant Art, Vox, LiveJournal, Xanga, etc. This is a great search engine to use to get that extra tidbit of information you might not pick up otherwise.
You can use LinkedIn to search through professional networks; you can also add your profile to network with other people with similar interests. By viewing other LinkedIn users' profiles, you can pick up quite a bit of interesting information: where they work, who they work with, their former positions, current or former supervisors, any kind of recommendations they might have received, and much more.
Yahoo!'s People Search page is about as streamlined as you can get, offering a quick search for phone numbers, addresses, or email. Results are U.S.-based only at this time. This is an extremely fast way to find what you're looking for; results include related images, blogs, news, and other Web content.
is a free people search engine that scours freely accessible public information and records. Everything found at Zabasearch is culled from public domain information, such as databases, court records, and phone directories.