His crime involved taking advantage of eBay’s affiliate program.
Here’s how that program is supposed to work: If you own a website like this one, you can provide a link to eBay somewhere in a blog post. If a reader clicks on that link and buys something (anything!) on eBay, you receive a small commission in the process. For most people, that amounts to beer money. A few people are fortunate enough to make a pretty decent amount per month — maybe several hundred dollars.
Brian Dunning, in a 13-month span between 2006 and 2007, made $5,200,000.