YouTube star Matthew Santoro

Matthew Santoro is one of the biggest stars on YouTube with more than 5 million dedicated subscribers.  He’s also the author of a new book, “Mind = Blown: Amazing Facts About This Weird, Hilarious, Insane World.”   We discussed how he became a YouTube star, how he chooses the topics featured in his segments, and what we can expect from the book.  Also:  Why “As Seen on YouTube” has replaced “As Seen on TV.”

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