Twenty years on from the invention of the World Wide Web, Dr Aleks Krotoski looks at how it is reshaping almost every aspect of our lives. Joined by some of the Web's biggest names - including the founders of Facebook, Twitter, Amazon, Apple and Microsoft, and the web's inventor - she explores how far the Web has lived up to its early promise.

Here, Aleks charts how the Web is forging a new brand of politics, both in democracies and authoritarian regimes.

With contributions from Al Gore, Martha Lane Fox, Stephen Fry and Bill Gates, Aleks explores how interactive, unmediated sites like Twitter and YouTube have encouraged direct action and politicised young people in unprecedented numbers.

Yet, at the same time, the Web's openness enables hardline states to spy and censor, and extremists to threaten with networks of hate and crippling cyber attacks. Show less