We had some great success with YouTube. We had lots of views and saw some quality traffic come our way.
They did eventually kill our account though for TOS violations. They don't like it when you promote porn or point to porn sites. Even if your content is light, if you're sending them to an adult site by URL in the video or in your profile, they get upset.
So you either have to be really careful or expect to get shut down and then start over.
Good luck
