After you connect your AdSense and YouTube accounts, a new report appears on your Reports page. This report is for the video units, and it shows the same information for video units that you see for other types of AdSense ads:
Page impressions
Clicks
Page click-through-rate (CTR)
Page cost-per-thousand impressions
Earnings
You have the same capabilities with this report that you have with any of the other earnings reports that AdSense makes available, including the ability to generate the report regularly and have it e-mailed to you
If you’re already using video on your Web site or blog, AdSense video units are a good way to monetize on that video. After you work your way through the confusing parts, you can add video with the click of a few buttons. The earnings potential is there, so get started with it.