You can now place Google AdSense ads in your RSS feeds. When you login to your AdSense account, you’ll notice a new ‘AdSense for Feeds’ option under the Setup tab. If you’re already familiar with setting up regular AdSense ads, you won’t have a problem with setting them up for your feeds.
You can customise your ads by choosing between text only, image only, or a mixture of both. You can also select your preferred colour scheme, the frequency of the ads, the position of the ads, and the length of posts you want the ads to appear in.
If you already have a FeedBurner feed, you can migrate it to Google. See the Google AdSense Blog for more details, and the video below.