Bruno, it will be tough for you to find any college cappers. Most here are just followers and dont do the work to pick games. Just look for the popular thread that everybody seems to follow daily.
I myself, use power ratings and watch line moves. Just rememeber the oddsmakers know and have accesss to a lot more info then us bettors get, so realize that they basically do the majority of the work for you when they put out a line. If you think a game should be -10 and they only make the game -3. you had better start digging as to why your number is so far away from theirs, because chances are pretty good they are right and you are wrong.
The biggest piece of advice i can give you, is dont get caught up in all the buzz about the public is on this or the public is on that. The truth is every single one of us who gambles is the public and just because a person hangs out on a gambling forum, that doesnt somehow remove them from being part of the public. There is no mystery group out there called the public, its all of us.
good luck