Zefrank has a better, albeit less philosophical, blog than me.

Here is some interesting evidence for Frank Jackson's epiphenomenalism, courtesy of zefrank. Some recent research shows that the neuronal firings responsible for muscle movement happened temporally prior to the conscious awareness of muscle movement, suggesting that the conscious mind may not be causally responsible for our behaviour, even though it feels that way to us.

The next day he continues to discuss evolutionary explanations for why we might have developed consciousness, as something to help us navigate the social world instead of the physical world.

Oh, and his summary of the gravitas of Bush's plan to send more troops to Iraq is pretty good too.