It seems that content is the way to bring visitors to places like your YouTube videos. According to Graham Cochran (successful YouTuber) this is how he has made over $15M online.
So this is great news for you and I since paying for advertising is super expensive today. I just just ten cents a click when I started online in 2004 through Overture. The same small classified style ad I ran now costs $6 to $8 a click!
I used to hate content because it seemed to be the Big G wanting to redifine advertising. But when Graham explained how it is a powerful way to get hits in YouTube to your videos, I was sold.
So you have to get good at creating, finding or re-purposing content and adding it in key places daily if you want to advertise to millions and do it free or almost free.