commercials, etc...
A few years ago, before Google bought YT, they experimented w/ commercials on some videos with some success, and that potential revenue stream is why google bought them coupled with several other factors such as their desire to "own" massive content. I think the commercials are only the beginning. As technologies progress I'd be willing to bet google will an even larger player in the web media content quite possibly spilling into some pay-per-view content.
But while I find the commercials annoying, they don't last too long, and the content is free. It beats paying for cable or satellite tv.
Just a few thoughts,
P