I already programmed small chrome extension that when you click on it's icon it sends you to a specific URL.
Now I need to add an Adsense Advertisement included in my extension code, so that the ads appear at youtube.com at the right ,
Please look at the image: http://i.stack.imgur.com/yhVz5.jpg, I just marked where I want my ads to appear.
I've already seen an extension that does that, but I don't know how to do it.
Have you read the program policies: Ads in Chrome Apps and Extensions https://developers.google.com/chrome/web-store/program_policies
Currently, AdSense may not be used to serve ads in Chrome extensions or packaged apps, per AdSense policies.
AdSense in packaged apps is being worked on. See the discussion here: https://groups.google.com/a/chromium.org/forum/?hl=en&fromgroups#!topic/chromium-apps/_47r_YKRdjA
In the meantime, star this issue: https://code.google.com/p/chromium/issues/detail?id=132602
来源：https://stackoverflow.com/questions/13293998/how-can-i-add-adsense-to-my-chrome-extension