Wizard of Odds

Very detailed descriptions of almost every casino game and variation. Typically includes rules, optimal strategy, house edge with that strategy, and frequently a detailed mathematical justification. The site is regularly updated and the author answers questions from visitors. If you're interested in gambling or the mathematics of gambling, this is the site to bookmark.

This site contains advertising from Bodog online casino, but does so tastefully. He has promised never to display ads that pop up, pop under, blink, move, make noise, or intermingle with the content. I wish more sites did it that way.