Resources

Websites
Barnivore, a great website dedicated to listing vegan-friendly (or not) beers, wines, and liquors
Accidentally Vegan, a listing by PETA of supermarket-found foods that you probably didn't know were "naturally" vegan (Oreos? who knew?!)

Vegan Online Stores
Food Fight Grocery (Oregon)
Karmavore (Canada)
Pangea Vegan Products (Maryland)
Vegan Essentials (Wisconsin)