Some of my favorite links/blogs, in no particular order:

Forks Over Knives

Vegan Runner Nerd

The Vegan Gypsy 

Klunker’s Kitchen

Brand New Vegan

No Meat Athlete

Runblogger.com 

Happy Herbivore

DC Rainmaker

Plant Based on a Budget

The Daily Beet (from Engine 2 Diet)

Dr. McDougall’s Health & Medical Center

Choose Veg

Slow Runners Club