I used to own a gambling site back in the day, and I’m now just getting back into the game, so no recent personal experience!
But, I have heard great things about the casinos promoted by fortuneaffiliates.com, wagershare.com, roxyaffiliates.com (all microgaming).
With poker, the big ones are partypoker, ultimatebet.com, pacificpoker and absolutepoker.com from what I read. These are also the programs that are coming on my poker site!
sportsbooks, I used to promote intertops, but had 8 players, and made like $20, so nothing interesting and when comparing books, I found that intertops always had pretty bad lines. Besides vipprofits, I heard that bodog.com is pretty good. But, they have a clause in their affilaite agreement, which says that you will have to deliver 10 players per year, in order to get paid for your players! so, you have to keep promoting them in order to get your residual commission, which really sucks. so, still debating about listing bodog on my site or not!
But again, I hang out here at CAP because I’m totally interested in the gambling affiliate world and because it’s the best webmaster board in my opinion, but I have not dealt with most affilaite programs myself recently!