John Cook of the Seattle Times has been writing here about the similarities between Mpire and Judy's Book. I actually think that the two companies are more complimentary than competitive. Judy's Book is really about local shopping. We are a destination site for you to find out what's on sale near you. If you want to do shoe shopping this weekend -- and you're wondering what's on sale / where near your home....i.e. where you can get a deal on shoes then Judy's Book is the place for you. Mpire -- as I understand it, is about shopping analytics of new and used products. You want to know what's happened to the price of ipods over time then Mpire will deliver this to you. I'm looking forward to seeing how both services evolve over time.