Here is a nice service coming online.
http://www.nearbio.com/nearbio/index.shtml...NearBio (www.nearbio.com) enables mobile phone users (and computer users) to find the nearest biodiesel fueling locations based on city, zip code, or GPS coordinates. The comprehensive national database of over 1000 individually verified locations is updated daily and is complete with driving directions, hours, payment options, and blend information (where available). The website’s graphical map of nationwide locations is the first of its kind, using a color-coded icon for each pump location to identify the specific blend available. [continued]