YouTube Chief Pushes Ahead with Subscriptions Despite Questions

Half of YouTube's watch time is on mobile and trends show it growing faster: http://www.businessinsider.com/youtube-video-watch-time-grew...

Ad blockers might be concerning but I don't believe they're currently widespread on mobile and with one mobile OS developer being hostile to 'advanced' apps like ad blockers and filesystem browsers and the other being an ad company, I don't think that's likely to change significantly.

It's easy to forget when your job has you on a desktop all day but mobile is now the 'default' way many (most?) people access the internet. Google receives more search queries on mobile than on desktop in many countries: http://adwords.blogspot.com/2015/05/building-for-next-moment...