Check out this tidy little article on Upselling on DHL's Small Business newsletter website. I was interviewed on the topic some time ago and the article just came out. Pretty basic info on Upselling, but important nonetheless!

I did not know this fact, however:

J. Paul Getty, the former billionaire oil baron—and once the richest man in the world—was well known for emphasizing the selling of products that give continued sales.

Makes perfect sense to me. Those are my favorite types of businesses!