We have some great news from our good friends, AdHitz has adapted AirTM for deposits and withdraws. (They previously had only coins and credit card for funding).
AdHitz was created back in 2009 to go along with its sister site ClixSense, which did not have banner advertising. A couple of years back when Jim decided to sell both of his sites, AdHitz was bought up by a company that has very long experience in GPT area. And as it was under Jim's management, it is also at the moment probably the best place to get referrals, especially to PTC/GPT sites and now you have again a very easy way to buy banner ads from them.