The Toronto-based Out-of-Home Marketing Association of Canada has released an update to its web mapping system that offers media planners the ability to create customized coverage maps. The system has been updated with the current inventory of all of the association's member companies. These include Astral Out-of-Home, CBS Outdoor, Lamar Transit, Metromedia Plus, Newad, Pattison Outdoor, Titan 360 and Zoom Media. Maps can be generated for Vancouver, Calgary, Edmonton, Toronto and Montreal. The system is located at <http://www.omaccanada.ca>.