In an attempt to quantify political debate in one of the world's largest democracies, Twitter India has collaborated with TCS for the iElect app. A combination of big data, social media and mobility is helping to make sense of a discussion which involves more than 800 million voters.

Young Brits are politically minded. 70% think social media should be used for social change, and a quarter are highly knowledgable about politics. Yet only 12% would definitely vote in a general election. Why are they so disillusioned? And is engaging via social media the answer?

Are the young Brazilians taking part in social phenomenon rolezinhos just trouble-making delinquents? We sent digital anthropologist Luana Kaderabek to explore this new social class, and see what their experiences can tell us about modern Brazil.

Social media has found a fertile environment amongst highly sociable Brazilians. The nation has openly embraced these platforms and is fully engaged – people in Brazil typically spend 12 hours a month on Facebook, almost twice the global average. But what's driving this uptake?