Guest Opinion

Monitoring what you eat is just as important as measuring the amount you walk each day. Why, then, has there been such little innovation in measuring calorific intake, asks Hasty's Chris Hollindale. More »

Legendary conference hacker Hans Raffauf on how to get in to conferences for free. Here are the Twelve Commandments of Sneaking Past the Badge Desk. More »

Jane Burns, a woman whose life was torn apart by hatred on Facebook from people she knew in real life tells her story. More »

An anonymous Twitter troll explains why he abuses strangers online, and issues a defiant warning to would-be unmaskers. So-called trolling is an essential part of internet culture, he argues. More »

Should entrepreneurs set their sights on education? Saad Rizvi says yes. More »

Russia is starting to take an interest in shipping its products to Europe, writes Lucian Avadani. More »

Arman Gukasyan, chief executive of Vizerra, explains how the technology he is building will leverage virtual reality for useful real-world purposes. More »

Laugh all you want: Croydon is emerging as a micro-hub of innovation. Local start-up advocate Jonathan Rose explains what's going on in this much-maligned borough of London. More »

Media lawyers Niri Shan and Adam Rendle dispel some of the myths around social media and English libel law. More »

How the NHS could benefit from user-centred design. More »

Everyone gets their business arse over tit to begin with, writes Bertie Stephens. More »

Entrepreneurship has become a meaningless and even a dirty word, writes Bertie Stephens. More »

Start-ups often play fast and loose with the law in the early years, but here are ten things you really must do. More »

When it comes to online gaming, women are now in the majority. Steven Cole explains why. More »

Does the Michelin Man hold a clue to the future of profitable internet advertising? Guy Cookson thinks so. More »

Tien Tzuo, chief executive of subscription billing platform Zuora, explains why businesses are switching to products like his. More »

Step up to the plate, internet. George Osborn argues that we need more satire in our lives. More »

Chartered accountant Pratik Sampat warns against professionals who overcharge start-ups for their expertise in research and development tax credits. More »

Andy Bell draws on his experience as a television producer to explain why the impact of the crowdfunding revolution may prove greater than some commentators think. More »

Luke Bozier, co-founder of Menshn, wants to know what Polybius would have made of Twitter. More »