Starting this week, Feedburner will be rolling out Adsense for feeds. Those publishers already in the FeedBurner Ad Network will see CPM ads directly sold onto their content alongside contextually targeted ads. Via the semi-official announcement:

That means you get the best of both worlds: a dedicated Google sales force that knows how and why to sell onto your content, with the added revenue that full back-fill coverage provides. And with AdSense, you’ll know that your back-filled ads are using the strongest contextual ad engine, ensuring the most relevant and profitable ads are delivered to your subscribers. And yes, ads are also sold via Google’s AdWords program.

If you're not yet a Feedburner publisher, you must meet the requirements to join the AdSense program to use AdSense for feeds. Publishers will be able to manage feed ad units directly from the AdSense Setup tab and track performance on the AdSense Report tab. When the program is officially launched this week, publishers will need to set up their AdSense channels for "placement targeting" in order to make sure that individual advertisers can target syndicated content specifically.