Radio and television presenter, Sara Cox looks at how social media has changed friendship in the 21st century. Sara discovers what it’s like to be part of the Facebook generation by signing up to Facebook for the very first time. She believes that friendships conducted via social media are less meaningful than those conducted in the real world, and fears that technology may rob her children of the quality of friendships that she enjoys with her own friends. But are her concerns justified? Along the way she gets her brain scanned in a groundbreaking study, meets a diagnosed Facebook addict, confiscates smartphones from a bunch of teenagers for one week, and gets exclusive access to Mark Zucherbeg’s touchy-feely plans for Facebook’s future.