In the last few years, there has been a number of advertising companies popping up that offer to advertise your home for a very low rate. Your first question should be, “Are you really a brokerage? If they have access to the MLS site, then the answer is yes. If they do not, they are merely an advertising company. Only licensed brokerages can promote their listing through the MLS on REALTOR.ca®. These non-MLS advertising sites take your money, with no guarantee of a sale.