The answer will probably pop up on Quora soon - behind a registration wall no doubt. http://www.quora.com/Groupon http://www.quora.com/Groupon And yeah, it co

The answer will probably pop up on Quora soon - behind a registration wall no doubt. http://www.quora.com/Groupon http://www.quora.com/Groupon And yeah, it could be a number broken down per year, per month, per week, per day, per hour.