Interesting article from Monsters and Critics, which details the gamblinling possibilities in Second Life, a virtual online gaming world.
Basically, you can get "Linden Dollars" for US dollars, which you can then use to gamble in virtual casinos in the game. Apparently three poker room operators are pulling in $1,500 a month. But it's probably not legal, at least according to the sources in the story ...
http://tech.monstersandcritics.com/n..._virtual_world