How to find an old friend I fogot hes address?

1. Try and go on friends reunited. I hope this helps.

2. If you remember his first and last name and or last known residence and approximate age you can try a free search at http://www.whitepages.com. If that doesn't help, you can try a pay service such as Intellius or USSearch which will allow you to do background checks, address searches by name and age etc. You might also try a site like classmates.com where you can search for him by the schools he attended. He may or may not be on there, but it's free to search, though you may not be able to communicate with him unless you subscribe, I'm not sure. Good luck.