http://www.vegan.org/going_vegan/eating_vegan/index.html
Provides great strategies on transitioning to a vegan diet, meal ideas, recipes, how to eat out and shop, and even ways to modify your current favorite recipes to be vegan. This site also has guides on many other aspects of veganism.

http://www.theveganrd.com/
A blog by an ethical vegan and registered dietician. Covers responses to rebuttals against veganism, provides health advice and offers a fantastic food guide.

http://vegweb.com/
A huge wealth of entirely vegan recipes. Also features forums, articles and various links to other helpful sites.

http://www.abolitionistapproach.com/
A blog by Gary Francione, pioneer in the animal rights movement and Professor of Law at Rutgers University. Great essays, lectures and posts on his abolition-based stance on animal rights.