I usually don't praise too many gpt sites...but i gotta give a shout out to clixsense..this site has been aroun forever..and is still paying its members!!! Even free members earn here!! i upgraded my account and got immediate access to 400 paying ads 
talk about a quick 4 bucks!!! check it out!!
http://tinyurl.com/oeo7wr
talk about a quick 4 bucks!!! check it out!!http://tinyurl.com/oeo7wr
