collective buying

Just as rumors swirl about a possible Google acquisition of Groupon, the rapidly growing two-year-old start-up made three recent acquisitions of its own.

Warehouse clubs have introduced millions to low prices via buying in bulk, but applying the power of the group is now getting discounts on everything from restaurants to sporting events. I stumbled upon Groupon fairly recently. One of those "heard it from a friend who heard it from a friend" kind...