max the adsense revenue by showing your channels to advertisers.

You can set up the custom channels and select “Allow advertisers to target this channel” checkbox , so the brand advertisers can target their content to your audience directly on a CPM or CPC basis.
Creating ad placement will show up to adwords and advertisers will easily include your content directly.
Make sure you set the channel in clear category and close to your content will get more benefit.
from , inside adsense. http://adsense.blogspot.com/2008/10/maximizing-revenue-by-exposing-your.html