Hands up. Who receives a Groupon email in their inbox every morning? *raises hand* I do! There’s nothing like a good deal, especially one you can share (and boast about) with friends. According to Ecosultancy, Groupon gains 500,000 subscribers a week - that’s a lot of bargain hunters. Groupon only established itself a couple of years ago and picked the perfect time to start the group buying phenomenon - the recession. People are more...