Many people assumed that Google would remain unchallenged in the AVOD space. However, Facebook and Amazon are now offering credible competition. The monopoly of YouTube in AVOD When it comes to advertising-supported video-on-demand YouTube knows no equal. With over 1.5 billion unique viewers every month, YouTube is clearly the dominant platform. All other AVOD companies added together make up less than the Google-owned company’s share of the market.