I heard they pay publishers a fixed rate per month which sounds enticing, but then I've been told they pay out net-60 which gets me thinking... anyone used them before?
888media.net use Google's ads. And me I was accepted into their program, I have proposed $ 250 per month provided to print 1.5 million hits per month per banner. Today they sent me the contract and sign it and send it back but I feel that this site is scam. Do you have proof of payment from them, if so, post on forums to see whether or not scam.
One of the shadiest companies out there go do some research on Google. Just Google "888media reviews" You will see no reviews and a load of complaints about random emails etc.