Just watched a couple of videos on Full Tilt Poker Academy and took some notes:

5 Common Leaks by Phil Gordon

1) Limping instead of raising - either raise or fold PF ALWAYS by the same amount

Reasons to raise PF:
- Limit competition
- Control the betting
- Make opponents define their hand strength
- Conceal your own hand strength
- Steal the blinds

Keep ALL PF raises the same to conceal strength

*** Watch Lederer's "How We Bet Video"

2) Sklansky's Gap Concept - You should be more willing to raise with a particular hand than youare willing to call with it.

3) Don't play dominated hands. Throw away those hands if there's a raise.

4) Don't overvalue suited hands. They only add 3% to the expectation of the hand.

5) Check medium strength hands on the river. [TPTK, etc.]

Reasons:
- Get them to bluff and call them if you feel they didn't hit a draw
- Opponent may check a better hand

*** Bet your strong and weak hands.
- If your opponent shows ANY sign of weakness, bet your weak hands to steal the pot.