(photo via Cali Tacos twitter)
Twitter has been an invaluable tool to gourmet food trucks both in creating awareness of who they are and as a tool to let their customers know where they will be. Traditional taco trucks have been slow to adopt it's use maybe because of the belief that twitter is great if you move around the city but not that important if you park in the same spot nightly or operate a brick and mortar. This is overlooking one of the valuable uses of twitter which is it allows you to reach out to new customers and let them know who are you.
Here's a list of some traditional taco trucks, taquerias, and taco caterers that are using twitter.