Was it that hard? "If you make money on our platform, you need to give us a percentage," seems sort of like an obvious monetization strategy. Otherwise, what's the point of building the platform?
Most of the apps at the time optimized for pageviews and monetized through DoubleClick, AdSense and other third-party ad networks, so there was non-trivial task of proving that "making money" was happening, followed by further non-trivial task of actually collecting such revenue from all of the jurisdictions.
>> Otherwise, what's the point of building the platform?
Facebook displays its own ads on application canvas pages. Therefore higher engagement with apps => higher pageviews => higher earnings.
