I used to have one in my sig but I got rid of it. Anyhoo, rakebrain is the one I used to use, they were always very reliable. However the second sig link can give you some rakeback (hint hint, spam spam).

As for sites, well full tilt is a reputable one if you're a US player.

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For Free Money, Poker Gifts and Rakeback I recommend PokerSourceOnline.

I have to recommend Cardrunners for superb poker coaching. It was honestly the single biggest improvement in my game signing up there! Sign-up fee might seem steep, but it pays itself back within weeks.