Don't Let Your Unused Groupons Go to Waste

Tens of thousands of group deals are purchased every day from sites like Groupon and LivingSocial, but between 18% and 22% aren't redeemed. All that spent-yet-unspent money is an opportunity for a secondary market, and a handful of websites are filling the gap, providing deal-holders a quick way to cash-out on offers they won't use.