Street-food vendors

When is a restaurant not a restaurant? If you're a "foodie," it's when your next meal is part of the food-truck revolution.

Let's differentiate the various types of street-food vendors; there are your small mobile carts -- think taco or hot dog cart; there are seasonal stands, like snow cones, chestnuts or fruit stands; there are booths, like at farmer's markets; and, finally, up the proverbial food chain, there is a food truck.