Satoru Murata just defended a dissertation at Boston University that describes his work at a salt- and ceramic-production site in Belize. It's a great piece of work, with results that are very pertinent to the Pacific coastal southern Chiapas sites discussed in an earlier post. You can access his dissertation at the link below.
http://bu.academia.edu/SatoruMurata/Papers/377475/Maya_Salters_Maya_Potters_The_Archaeology_of_Multicrafting_on_Non-residential_Mounds_at_Wits_Cah_Akal_Belize