> Google ad manager is the cornerstone of pretty much all internet advertising. That money is a part of Googles revenue, so there isn't as much there as you mi

> Google ad manager is the cornerstone of pretty much all internet advertising. That money is a part of Googles revenue, so there isn't as much there as you might think. Maybe you mean there is quantity there but advertisers doesn't pay as much for it as they would for Facebook or Google search ads, then yeah that is possible, but normally in a market segment you count big players by revenue and not numbers sold.