You can earn a 5%
commission by selling IT Revolutions: Third International ICST Conference, Cordoba, Spain, March 23-25, 2011, Revised Selected Papers (Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering)
on your website. It's easy to get started - we will give you example code.
After you're set-up, your website can earn you money while you work, play or even sleep!
You should start right now!