Just giving my opinion on Bookmaker.com, as I know that there are a LOT of scam sites out there.
Bookmaker is mainly a sportsbook but it also has a poker room and a casino, and also it has Blackjack Tournaments.
I love this site, because I have won at there freerolls , poker and blackjack, and more importantly they pay. On the different sports forums they are ranked at the top, they never have no paid, ever.
I won $1800 in a $6k poker tourney which I won a seat to, by winning a freerroll. I played the Fruity slots and turned it into $3700, then I got stupid and played it back down to $3000 and cashed out.
You guys really should check out these blackjack tourney freerolls. It seems they are doing them every Saturday now. They give away $200. If you sign up use promotion code "Aplus" to get all the freerolls.