This One Goes Out to My Runners

As I mentioned in my last post, I'm training for a 10k. I have always wanted to get my nutrition right but can't quite figure it out. Now that I'm training, I definitely want to make sure my body is getting what it needs. Does anyone out there know a good website (not mypyramid.gov) that can help me figure out the right nutrition for my body? Preferably without a fee...

Thanks!