When you work as a freelancer the latest developments in social media are as natural as the TV remote control. Or so the myth goes; that we tweet relentlessly, sit in coffee shops poring over our wi-fi enabled laptops and could work up a mountain thanks to our iphones. This is all rubbish of course. The expectation is that somehow, by virtue of working freelance, you know all about the latest developments. The reality is that we work in...