The first two things you will want to pay close attention to are the games or, better said, the list of available casino games. You will need slot machines, table games, and card games the most. Luckily almost all online casinos do offer these casino games as the first available gambling options. The next thing to look for is the promotions. Make sure there is a deposit bonus, and if possible, get free spins. These promotions are common, and they are easy to find these days.