Has social media killed the art of conversation for teens? Not according to author, social media expert and youth researcher danah boyd - who says it's "nothing more than a release valve to changes that have happened in the real world." We caught up with her to learn more.

You can’t move for being told how to be happy. It’s a choice, claims Coca-Cola in its Choose Happiness campaign. It’s the truth, croons Pharrell in Happy. We can redesign our lives to achieve it, says Paul Dolan in Happiness by Design. But what does ‘being happy’ mean, and how do we achieve it?

Gen Z are mad for mobiles and messaging; 88% of US teens have access to a cell or smartphone, typically sending and receiving 30 texts per day. But without WiFi or data plans, it’s hard to stay connected in the classroom. Thanks to messaging app Jott, you can chat to your mates without either.

Communication in schools of the past involved passing notes or whispering. Now, the proliferation of smartphones means kids are more likely to be messaging under their desks. But with phones often banned in classrooms, how can they communicate covertly? Jewelbots might offer a solution.