Start with the skip tracing services like trans union. Most any lawfirm should be able to do a thorough background check. Won't be cheap though. Could cost 100 bucks.
Also, be sure to press charges if applicable, even if it's petty. This will generate a NCIC criminal background check(assuming he's a con- not a big stretch) with all the addresses, aliases, etc the man has ever used. You can then get a copy of the file through filing a FOIA request. That could take up to 90 days though, but it's worthwhile. If he turns out to be wanted, call the bailbondsmen who paid the collatoral for his release, and give him what info you have. Maybe a bail enforcement agent will find him for you.
Finally, talk to his nieghbors, his friends, anyone you know that knows him. He might've slipped and told someone where he is going.
If you really have a hard on for the guy, try a PI.
Oh, and a time and cost effective long shot is to request a forwarding adress for the individual at the local post office. Surprisingly, a lot of idiots actually forward their mail.
Good luck.
"Trample the wounded, hurdle the dead."