I do not remember who told me about the You are not so smart website. Maybe it was Chris Hardwick on his podcast, or Kevin or someone else…

Some interesting articles:

The Benjamin Franklin Effect
http://youarenotsosmart.com/2011/10/05/the-benjamin-franklin-effect/
“You grow to like people for whom you do nice things and hate people you harm.”
(insufficient justification effect)

The Overjustification Effect
http://youarenotsosmart.com/2011/12/14/the-overjustification-effect/
“Getting paid for doing what you already enjoy will sometimes cause your love for the task to wane…”

The Backfire Effect
http://youarenotsosmart.com/2011/06/10/the-backfire-effect/
“When your deepest convictions are challenged by contradictory evidence, your beliefs get stronger.”

The Sunk Cost Fallacy
http://youarenotsosmart.com/2011/03/25/the-sunk-cost-fallacy/
“Your decisions are tainted by the emotional investments you accumulate, and the more you invest in something the harder it becomes to abandon it.”