A "history"? Does your history consist of a single patent lawsuit 13 years ago? Also subsequent to the lawsuit Jeff Bezos went on public record as identifying that as a mistake. http://oreilly.com/news/amazon_patents.html. After which he spoke to congress about how to change the US patent law to fix it.

As an author on 25+ Amazon patents (not the one referenced by the post) I will tell you three things:

1/ The US patent system is broken. Everyone knows this. 2/ Every company has to protect itself by filing patents. This is just a reality of the system that we have. 3/ A company that turns its focus away from its customers and instead focuses on other companies is either a parasite (hello patent trolls!) or has lost its way.

My 0.02.

Can you provide another example? A single large suit over 10 years ago doesn't really indicate a 'history of enforcing patents'...