Cool Running
www.coolrunning.com
Cool Running is one of the largest of the online running mags. It offers race results from all over the nation, training tips, news, and resources such as running logs, links to other running sites, and calculators for heart rate and such.
Since it is a magazine, you cannot pin down any one author. I did look at the credentials of the Editor-in-Chief and was quite impressed with his running and publishing credentials. Some pages in the site had corporate sponsors, but it was only for the news page and the resources page. Since the sponsors were not mentioned in the articles, I assumed they were not influencing any information presented in the articles. It seems to be updated every day with new news.
The site looks very professional with good graphics ad a cool page layout. All the training advice seems to concur with many other bits of advice from around the running world.