Complex sentence: Dalton's passion for blackjack (and now poker) prompted him to create and maintain a blackjack and poker website providing free access to his "Encyclopedia of Casino Twenty-One" and public blackjack and poker forums.
Split into simpler sentences: Dalton's passion for blackjack (and now poker) prompted him to create and maintain a blackjack and poker website. There you will find free access to his "Encyclopedia of Casino Twenty-One" and public blackjack and poker forums.