Last week I posted a blog about the limitations of Groupon and the need for businesses to focus on a loyalty initiative as well as daily deals to retain customers drawn in by the discounts. So imagine my surprise when this Wednesday my twitter feed erupted as Groupon announced its new loyalty program Groupon Rewards. I would like to think it was my urging but Groupon’s critics and businesses alike have been pointing out the daily deals sites shortcomings and looking for ways to....