The Virtual Revolution: Homo Interneticus

Dr Aleks Krotoski concludes her investigation into how the world wide web is transforming our lives.

In the fourth programme in the series, she looks at how the internet is changing our very behaviour - and even our brain functions.

Joined by Facebook founder Mark Zuckerberg, Bill Gates, Al Gore and the neuroscientist Susan Greenfield, Aleks examines the popularity of social networks such as Facebook.

How are they changing our relationships? Do they bring us together - or do they end up leaving us more isolated?

And, in a ground-breaking test at University College London, Aleks investigates how the Web may be distracting and overloading our brains.

First broadcast 15 March 2010