With marijuana now legal in over 60 percent of the United States, and with the latest estimates showing the cannabis industry could be worth a whopping $57 billion by 2027, it seems unlikely that major tech companies, like search engine giant Google and online payment platform PayPal, would still have a problem doing business with cannabis-related operations. But businesses that market ancillary pot products, such as vaporizers and e-cigs, say they have been completely shutout of the world of e-commerce.