A friend sent me a link to a TED talk which she titled "funny and interesting." The speaker is Shawn Achor, and my friend was right - he is funny and interesting. In a very entertaining way, he explained that while we think success will make us happy, it's just the opposite: happiness will make us successful.
I'm now reading his book - also funny and interesting - and it's reinforcing some of the other concepts on happiness that I've been reading about over the last year. If you need a dose of happiness and have about 12 minutes, take a look.