Semyon "Darling of Las Vegas" Dukach has his own Blackjack busting site at blackjackscience.com. Dukach, a former MIT student, earned hundreds of thousands of dollars smashing casinos all over the globe with a set of powerful blackjack 'secrets'.
Dukach's story was recently turned into a book, Busting Vegas [which I've just finished reading, hence this post] written by Ben Mezrich, best-selling author of Bringing down the House (also about MIT blackjack players) and Ugly Americans (Americans getting mega rich trading on the Nikkei).
The techniques used by Dukach and his confederates are simple, yet baffled casinos. The secrets, essentially, involve remembering sequences of cards and the ability to cut a deck of six packs to an exact point – a skill Dukach believes anyone can master with a months practice.
Have a look at blackjackscience.com if you are serious about your blackjack and want to learn how it's possible to turn the casino's 2% advantage over you into a 50% advantage over them.