Not "some portion". As I told you, that first part is all ad revenue.
From the article:
- 75 billion revenue total
- 52 billion "AdWords and Search Advertising"
- 15 billion AdSense
So yes - the vast majority came from the ad business:
15+52=67 billion (90%) from the ad business, that leaves just 8 billion from all other businesses.
"came from Google’s own websites" - that was traffic, it still was ad revenue! With that ad revenue they created free content websites like Youtube. But what pays for Youtube are Google's ads. It is ad revenue. Creating a huge free video site over the years when you have billions to subsidize it is not a sign of superior business intelligence in my opinion.
So 23% + some portion of 77%. Still not the vast majority.