In January 2011, they were two guys working hard to keep their group media buying site Twangoo running with a handful of freelance sales staff. Less than three months later, they have 40 staffers, a new office in Loop Street, Cape Town, and possibly the hottest thing since Facebook as their backers. That’s because Groupon acquired Twangoo in January 2011 and tasked its co-founders, Wayne Gosling and Dan Guasco, with establishing the Groupon brand in South Africa.