There will be few online gambling enthusiasts who are not looking forward to tomorrow’s horse racing and the Grand National in particular which is probably one of the biggest events of the year for gambling online but there are also those who are not interested and prefer to stick to their online casino. Online casinos have a vast range of casino games these days but apart from casino slots there are a couple of games which remain popular and they are roulette and blackjack. Roulette tends to be played by the casual online casino player as there is no skill involved and the game is very simple but blackjack on the other hand tends to attract those who think that with skill the dealer can be beaten. Online blackjack is such that the dealer always has a slight edge even though on the surface of it the player has just as much chance of getting a winning hand as the dealer but the difference is that the player plays first. When playing blackjack online if the player busts then the dealer wins automatically regardless of the fact that may well have bust as well and this is really the only edge that the dealer has so a good blackjack player will attempt to use this fact and stay in the game as much as possible even if this means holding on lower than 17. Holding on less than 17 when playing blackjack online only makes sense if you think that the dealer will bust and your only guide to that is the one card of the dealer that is face up. Clearly the weak hand for a dealer is 15 or 16 as they must draw a card and the probability of busting is quite high although even it is far from a certainty so if you can still be in the hand when that happens even with a low total you are still in with a shout.