Yes, I agree and had an objection to that number in my first edit. It's obvious that YouTube isn't worth anywhere near $100B. What made me remove it is that G

Yes, I agree and had an objection to that number in my first edit. It's obvious that YouTube isn't worth anywhere near $100B. What made me remove it is that Google itself is valued at 371B, so the idea that YouTube constitutes 26% of that valuation is something in the realm of what someone could defend. (To compare with your numbers, YouTube.com is the third-most visited site on the planet, after Google.com and Facebook.com [1][2] and has "more than 1 billion users" [3] along with 50% monthly growth according to that page. Since YouTube isn't in the same business as Netflix (VOD), it's hard to use that as a cap on its valuation.) The author's valuation of YouTube today is probably still inflated by a large multiple. You suggest a cap on YouTube of 8.9% of Google's valuation ($33B), perhaps that's fair, but it's hard to say as it's not an independent business. [1] http://www.alexa.com/topsites http://www.alexa.com/topsites [2] http://en.wikipedia.org/wiki/List_of_most_popular_websites http://en.wikipedia.org/wiki/List_of_most_popular_websites [3] https://www.youtube.com/yt/press/statistics.html https://www.youtube.com/yt/press/statistics.html