Social networking sites like Facebook, which allow people to locate and keep in touch with others online, are quickly becoming commonplace. Most people use at least one social networking site, and some belong to many different online communities. There is no doubt about it: the internet is changing the face of communication, making both finding friends and phone number searches much more easily than in the past.

Facebook is particularly useful social networking site because it is very popular among students as well as those working in academia. If the person you are looking for is likely to have an email address ending in .edu, Facebook should be one of the first places you look. Even if you cannot find them on Facebook, they might use other social networking sites. You can find out if they do by using a people search engine, which browses the web for information relevant to the names and keywords you entered.

Finding friends on Facebook is as easy as locating their personal profile. From here you can tell what network, or email address designation, they belong to, and more than likely where they currently live. Even if they have not updated their profile in awhile, by requesting to be their friend the message will go directly to their email account, which means they now have a way to contact you.

Of course, if you can't find contact information using Facebook or any other social networking site, and have also tried people searches to no avail, you can run a phone number search to find out the name and address to which a number is registered. A phone number search is a valuable tool for anyone, whether you need to look up a number you found on Facebook or simply find someone's home phone number.