There are many websites out there that say they can help you look up addresses and find out other kinds of information about anybody you wish. The one that seems best to me is Intelius. Intelius offers a wide range of information and it seems to deliver on its promises. Its site is organized into four categories: verification, information, protection and business (which includes employment and tenant screening). One of the reasons I feel comfortable recommending Intelius is that it has these business services. Businesses usually demand a higher standard of quality than the public. If you’re looking for addresses and phone numbers, Intelius should be satisfactory.