"The sale of shares in Groupon has raised $700m (£437m) after the public offering was priced higher than had been expected.  Shares in the company were originally priced in a range of $16 to $18 a share, but were eventually sold at $20.  It values the business at almost $13bn" -- BBC News

Groupon is a craze that's relatively new (circa 2010) yet taking the market by storm!  The idea is basic but apparently genius - offering various discounts for everything from spa breaks, to restaurants, to dental work!  There are daily deals for different areas (London, Surrey etc) including large companies/chains as well as more unique 'boutiquey' feel shops.

It doesn't surprise me that they're doing so well - during this difficult climate, who wouldn't want to grab a bargain or two!