One of the oldest and still most popular casino games is blackjack which is sometimes known as Pontoon or 21 (Vingt et Un in French) but keep your eyes open at some online casinos as they can have blackjack and pontoon and the rules are not necessarily the same. In online pontoon when the dealer and the player have equal hands it can be a loss for the player whereas in online blackjack equal hands is a push and your stake is returned. There are also some interesting variations to be found online one of which is the option to play blackjack with a single deck of cards instead of the more normal shoe containing 6 or 8 decks which some consider gives the player a slight advantage by being able to see three of the 52 cards. Yet another blackjack online variation is known as blackjack switch in which the player plays two hands against the dealer but you have the option to switch the top card from each hand thus improving at least one of your hands and possibly both of them. This does of course give the blackjack player an advantage which is compensated by a blackjack only paying out at evens instead of the normal 3:2 and if the dealer turns up 22 the hand is a push instead of the dealer being bust; nevertheless, for a change this is an interesting blackjack variation. Duel blackjack is another option which is a kind of a cross between blackjack and poker in that two community cards are dealt which can be used by either the player or the dealer. There are many more variations on the basic blackjack game so take a good look around the chosen online casino and if you enjoy basic blackjack you may well find a variation that you enjoy more..