Hello,
First of all, I want to say that I am new in this domain aprox 10 months when I created my first gambling websites...
And that I am glad to see that out there are sites like GPWA which can help you with that...
I started to make some great revenue for "Revenue Giants" through more than 5 sites owned by them... like Bingohall.com (now .ag), richcasino.com, 7 reels, 21dukes etc...
They paid me in the first two months (three because first month was the registering date) and after I brought them more than 2,000 $ a month they just don't pay me.... they didn't respond to my emails.... they are a joke...