Most discount lovers can probably recall the great bargains to be had at Groupon.com. Unfortunately, Groupon's discount-a-day coupons aren't as popular as they were in recent years, and that's led the company to get creative and look at new ways of promoting itself. Take a look at Groupon now and you'll be amazed to see the site is now effectively a full-fledged business listings directory, a bit like the old Yellow Pages. However, Groupon goes one step further than its new rival because, as users