Although I disagree with the author (groupon is not sitting on a legal timebomb), I think this is an important topic for entrepreneurs to understand. My family

Although I disagree with the author (groupon is not sitting on a legal timebomb), I think this is an important topic for entrepreneurs to understand. My family had a company that got caught up in a trademark dispute. It was a lot of he said, she said, as we fought over who had used the name first. In the end, the lawyers bankrupt both companies as they fought for the name. It's important when you're starting a business to avoid entanglements over trademarks, and honestly, if you do encounter a problem, you're better off just giving up your name and picking a new one than draining all your resources in a trademark dispute.