AdSense is an ad serving application run by Google. Website owners can enroll in the program to enable text, image, and, more recently, video advertisements on their websites. These advertisements are administered by Google and generate revenue on either a per-click or per-impression basis.
Google not only offers AdSense for product feeds but also allows businesses to display ads in custom search engines in web pages. Furthermore, AdSense allows publishers to earn more money from their RSS feeds with contextually ads and placement-targeted ads and as well from the visitors searches.