Keeping in touch with old friends has only gotten easier in the age of the internet. However, there may be individuals with whom you have lost contact and you cannot find. If a friend or neighbor has moved and you wish to find them again, you may be able to use their old address to find their new address. If they have moved recently, this is even easier. If the individual did not supply you with a forwarding address when he or she moved, be sure that they will not consider it an invasion of their privacy for you to find it out yourself.

Write the individual's name and previous address on a blank envelope. Fill out the envelope as usual, including your return address and a stamp. Write the phrase "Address Correction Requested" prominently on the front of the envelope. This will tell the post office to affix a label containing the individual's new address on the envelope and send it back to you.

Access the public records database for any professional license the individual may have. Lawyers, CPAs, notaries, real estate agents and other professionals all have licensing agencies with which they must keep an accurate, current address. Consult the organization with which the individual is licensed and look up the individual by name.

Use a reverse phone lookup tool such as ZabaSearch or Pipl and enter the individual's area code and phone number. These tools will search through phone directories and attempt to find an address associated with the telephone number. If that doesn't work, there are other online methods you can try, including social networking sites and using a search engine.

Contact relatives or old neighbors if you have their information and ask if the individual you are looking for left any forwarding address.

Hire a professional people finder agency. While these services can be pricey, they have access to techniques and tools that you do not. Additionally, their experience can be invaluable in finding someone you cannot locate on your own.