One person I have followed for years is Matt Marshall (you can find a general link to his new site at the bottom of the page). He talks a lot of sense, especially around diet and exercise, and has made a big point of staying away from fads and trying to stick to the "classic" way of doing things, when low-fat food didn't exist, and neither did steroids and fat-burning supplements (most of which are dubious anyway).
His whole blog is well worth checking out, but this post in particular was very interesting... and maybe just a little bit scary...
http://www.fitnessunderoath.com/these-healthy-snacks-are-making-you-fat/
