I was wondering if typically online casino blackjack games work in such a way that the cards are reshuffled after each hand has been played or whether several hands are played out from the shoe at which point a reshuffle would take place after the card got to a pre-defined area either by a marker card or another pre-determined area within the cut of the deck(s) being played in the shoe?

I'm in agreement with Phizzle on this one... I'm 99% sure that most online casino software platforms shuffle their cards after each hand has been dealt. I think that with Microgaming software thought there are some blackjack variants that actually work in such a way similarly to how Phiz has described where they shuffle the decks only after a certain number of hands have been deal. The problem here I beleive would be that there wouldn't be any way to know when the reshuffle is taking place so even if there was a reshuffle you wouldn't know and it couldn't help you if you were trying to count.

Yeah I agree with you guys I beleive that there's no way that online casinos could allow a game where players could count so effectively whether the casino has one deck in their shoe or 8 it wouldn't really make a difference and is definitely more a gimmick then anything else.

Yeah I agree too I don't think that it's possible that online casinos can get away with allowing players to count cards to there must be a reshuffle after each hand in a round of betting has been completed.