Great resources that work for me are singles sites. Try AdultFriendFinder, Gay.com, Adam4Adam, Manhunt.net, even XY.xom (if you are looking for twinks... be very careful on that site, though... lots of chicken hawks and minors pretending to be over 18).

Rocky

PS: Classified ads work, also. I had a lot of positive responses when I placed an ad in a local and popular gay rag.