Для популярных блогеров появилась еще одна возможность получить дополнительный доход. Google тестирует рекламу в rss-каналах:
Google AdSense for Feeds

AdSense for feeds is a program that enables publishers to place relevant ads in the feeds they syndicate. Google technology understands the nuances of language, and places ads that are closely matched (or "targeted") to the content next to which they appear.

If you are a current AdSense publisher and your feed has more than 100 active subscribers, you may qualify for participation in AdSense for feeds (BETA).