Advice and Support
About.com offers a wealth of easily digestible information (and recipes!) as well as an Internet forum moderated by the author.
With membership in the tens of thousands, the VeggieBoards are an active place to discuss everything from urban composting to the best-tasting veggie burgers.
Everything Guide to Being Vegetarian
A helpful guide to living a vegetarian lifestyle that includes general tips and plenty of recipes. You can find even more recipe ideas at sister cookbook sites, Everything Vegetarian Food and Everything Vegetarian Pressure Cooker.

