"Re/Max, founded in 1973, had not served any ads on its websites prior to opening them to programmatic ads through ...
"Audience extension was predicated on publishers offering a deep understanding of audiences, and so could easily find any type of customer not only on their owned and operated sites, but on other sites. The model today includes multiple tactics and channels including mobile sites and apps, video inventory, real-time bidding (RTB), and private marketplaces (PMPs)... But to truly “level up” their audience extension game and diversify monetization strategy in an organized fashion, I recommend these strategies for publishers."
Read more about audience extension trategies from Centro's John Hyland in EContent.