I recently re-discovered an invaluable internet resource for the running community: Ozzie Gontang not only has a tremendous amount of knowledge about the body, how it works, and running, but he has been sharing that knowledge with thousands and thousands for many years.
When I started my running "career" over 10 years ago about the only place (from what I could tell) for runners to congregate on the internet was the rec.running Usenet group. Ozzie not only shared his experiences and knowledge, but he also maintained the rec.running FAQ. While my running continued, I fell away from being active in the internet running community, until recently when I started engaging in the Runner's World forums.
The other day I remembered Ozzie and, thanks to Google, he was easy to find. Check out the Mindful Running information on his website. Ozzie has really assembled some great stuff.