Back in 2008, I was one of the first writers in the industry to notice that YouTube had passed Yahoo! to become the second largest search engine in the world, behind only Google.
Back then, I was writing for Search Engine Watch and my article was entitled, Has YouTube Passed Yahoo in expanded searches?
(Spoiler alert: The answer to the rhetorical question in the headline was: “Yes.”)
Today, I want to ask a related question: “Is YouTube about to pass Amazon as the largest scaled and most sophisticated industrial recommendation system in existence?”