Also it looks like they didn't mention groupon.com when they filed their trademark. I've made a more detailed analysis at http://news.ycombinator.com/item?id=15

Also it looks like they didn't mention groupon.com when they filed their trademark. I've made a more detailed analysis at http://news.ycombinator.com/item?id=1549608 http://news.ycombinator.com/item?id=1549608