There's nothing like a blog post to inspire angry rants from anonymous readers: it's the talkback radio of the digital age. So why is Australia's leading travel blogger Ben Groundwater setting out to put faces to his readers' made-up names? Armed with a backpack, a laptop and a cover story in case of emergency, Ben has a plan: to travel the world, relying purely on the kindness of his sometimes frightening, but always interesting, readers. After posting...