This post on marijuana marketing was contributed By Fae Savignano, EVP, Marden-Kane Digital. In the United States the use and possession of marijuana/cannabis is illegal under federal law for any purpose. However, the legalization of marijuana by U.S. jurisdiction (State law) is on a roll! As of this date, the medical use of marijuana (with a doctor’s recommendation) is legal in 33 states: Alaska, Arizona, Arkansas, California, Colorado, Connecticut,