One of the perennial questions surrounding YouTube is "how will it ever make any money?" A partial answer to that question emerged this week with its Promoted Videos scheme, which lets individuals or companies buy keyword-style placement to promote video content.
The scheme uses the same Ad Words model that Google employs on its existing sites. You might not want to advertise your own videos that way, but in the grand scheme of things, any way for YouTube to make money is good news for everyone who wants a free place to host their videos.
Promote your videos on YouTube and across the Web [Official Google Australia Blog]