Anyone ever learned to count cards in Blackjack (successfully?)? I've always been interested in the possibilities of it, but all the info that exists on the internet is either 1) crazy people (the same "geniuses" who float around investment forums), or 2) casinos (you can imagine this isn't probably the most trustworthy source). I'm curious what books and methods people recommend and if the pursuit is even worth attempting? The concept certainly seems fascinating ...