Aleks Krotoski is an academic and journalist who writes about and studies technology and interactivity. She is currently a Visiting Fellow in the Media and Communications Department at the London School of Economics and Political Science, and Research Associate at the Oxford Internet Institute. Aleks writes for the Guardian and Observer newspapers, and hosts Tech Weekly, their technology podcast. She presented the Emmy and Bafta-winning BBC 2 series Virtual Revolution, and more recently the BBC Radio 4 series Digital Human. Her first book is Untangling the Web: What the Internet is Doing to You. Also this week, critic Matthew Sweet on the Ealing WW2 propaganda film Went The Day Well?