According to Google blog, you can buy Promoted Videos directly in AdWords. It means, YouTube videos in AdSense nor AdWords in YouTube? To clarify this issue here it from YouTube Engineer, Jonathan Goldman.

“AdWords advertiser with video content — from a small business looking to promote a product, to a movie studio premiering a new trailer — can use Promoted Videos to make sure their videos find a larger audience. This integration will provide a single destination for your overall Google ad buy, and will give YouTube advertisers access to campaign tools in AdWords”.

The YouTube videos in AdSense are now an More >