I'm reading Kevin Blackwood's "Play Blackjack like the Pros." In the book, he talks about how playing at online casinos, aside from the possibilities of bonuses, is a losing game. I read the same thing on this site. I don't completely understand why this is true... I don't have much experience playing online, but why is card-counting rendered useless? I know that Sands of the Carribbean offers a single deck game; wouldn't an accurate use of card-counting tip the scales in favor of the player and not the casino? Thanks in advance.