Online Poker Books

[Lenstonbain]

Could anyone tell me what books are worth buying that are about online play. I'm not talking about books that are for a total beginner as I am a pretty experienced live game player. Something that would give me advanced strategy for online medium stake ring games and tournaments. Thanks in advance for any advice.

[Starfish]

It's the same game, online or live. Only tougher opponents online. Smaller stakes and more practice...