Looking for what on Youtube?Have you tried looking it up on youtube?
Additionally, you can read my Adsense guide and visit the links in the guide to learn more about what is and isn't allowed. http://www.blackhatworld.com/blackh...application-approved-first-try-its-cinch.html"Am I allowed to display Adsense in a fixed div on the top or side of a page so that it does not move when the page is scrolled, same as in the Gmail reader?"
No, doing this would be considered bringing unnatural attention to the ad. In addition, a site may not use symbols such as graphics, arrows, or misleading images that direct attention to the ads. This includes placing Google ads in floating box scripts.
AdSense Team
If you using WH Adsense I wouldn't recommend you to do this.
If you use BH Adsense, than try find theme that have static sidebar. Or try with plugins.
If you don't know where to download premium plugins for free send me PM. I will send you link.