Youtubers is a huge one. Those guys make such an influence to such a vast audience it's ridiculous. Majority of these automotive vloggers or whatever you would call them have say over 250,000 subscribers (a lot of them closer to 750,000 some more) anyhow, the amount of views from their subscribers alone would be great, now add to that those that share the video and the stragglers that end up at the video from recommended videos as well. It's insane!