“What’s Snapchat?” “Is Pin-interest like an online cork-board?” “Isn’t Tumblr a type of glass?” Are you sick of trying to explain social media to your mum and dad? Or have you yourself fallen out of touch with the ever-changing world of social media? What IS social media? In a nutshell, it’s a tool people use to create and share content online. What kind of content? Depends what you’re in the mood for. Let’s ‘update’ your tech awareness by ‘zooming in’ on some of the world’s most popular social media apps.