If you're a web developer or host, now you can generate more revenue and improve your service with the new AdSense API, a free beta service that allows you to integrate AdSense into your website offerings.
Using the AdSense API, you can enable users to perform a variety of AdSense functions without leaving your website, as create an AdSense account, manage an AdSense account, create and modify AdSense for content ad units and link units and AdSense for search boxes, view detailed reports to monitor performance and earnings.
The AdSense API is great for publishers who don't want to set up their own accounts or dealing with cutting and pasting HTML snippets.
Approved AdSense API developers will receive a share of the revenue earned by the publishers you've signed up. In addition to the revenue share, you'll also receive $100 each time a new publisher you've signed up earns $100 in less than 180 days.