Audioboom Group plc announced the launch of SHOWCASE, a global advertising marketplace. SHOWCASE connects buyers and sellers of podcast advertising inventory through Audioboom's technology platform. At launch, more than 250 million advertising impressions will be made available to buyers each month. For podcasters, the marketplace offers a "plug and play" hub connecting their content with a group of established sales channels, including more than 2,000 advertisers, a programmatic ecosystem that reaches 25 major Demand Side Platforms (DSPs), and a network of international sales partners.