[bryanlarsen]

Google doesn't break out their ad revenue numbers. Current estimates are that Youtube & Google Play ads contribute >15% of their ad revenue. I would argue that "ads against search" and "ads on Youtube" are two different businesses even if they do seem similar. Google is not a one trick pony: they have 5 billion dollar businesses: ads against search; ads against their web properties like Gmail, network ads (DoubleClick), ads on YouTube, Android.

[jerf]

Yes and no; if general faith in Internet advertising tumbles those businesses will all be affected.

And I do mean "yes and no". There are ways in which they are different, but there's also significant ways in which the performance is significantly correlated in a way that would concern me as a CEO.

[samfisher83]

http://www.wsj.com/articles/viewers-dont-add-up-to-profit-fo...

You tube does not make much money according this article. If youtube was making money wouldn't google make a not of it in their 10k or 10q instead of not breaking it out.

https://www.sec.gov/Archives/edgar/data/1652044/000165204416...

[gaius]

Google didn't want Youtube. They just wanted no one else to have it.