From the helm of TIME magazine to running Google's operations in the UK and Ireland, Eileen Naughton's career has crossed the Atlantic and placed her at the heart of the London tech scene.

In this candid interview with Clare Balding, one of Britain's best loved broadcasters, Eileen talks about both her career and the challenges of staying ahead in a world of exponential change. Five billion people are joining the online revolution: How do advertisers and marketers keep pace with the speed of digital and seize the opportunities of the new connected age?