Here's a amazon ad widget from Amazon Associate site:
<iframe
src="http://rcm.amazon.com/e/cm?t=xyzxyz-20&o=1&p=11&l=ur1&category=textbooks&banner=17P1AE8RQ1T7ZFC62V82&f=ifr"
width="120"
height="600"
scrolling="no"
border="0"
marginwidth="0"
style="border:none;"
frameborder="0">
</iframe>
