Amazon Associates - https://affiliate-program.amazon.com
Amazon Web Services - http://aws.amazon.com
WorldCat Affiliate Tools - http://www.worldcat.org/wcpa/do/AffiliateUserServices?method=initSelfRegister
XISBN - http://www.worldcat.org/affiliate/webservices/xisbn/app.jsp
LibraryThing for Libraries - http://www.librarything.com/forlibraries