The December issue of Runner's World Magazine has a nice piece by Yishane Lee with the 10 best running tips for every runner, compiled from Runner's World readers.
It includes a lot of good basic advice, like this:
EXERCISE CAUTION
"Listen to your body telling you that it needs a day of rest," says Laura McElduff, a reader in Northvale, New Jersey. "Otherwise you'll end up burned out, overtrained, or injured."