Kindle the fire to self-publishing

With 1.3m e-readers bought this Christmas, the flame was lit for budding authors to go it alone. Rebecca Ratcliffe meets Kerry Wilkinson who sold his 100,000th copy

4G mobile internet promised across UK

Ofcom wants 4G spectrum to reach 98% of homes, but critics warn of higher prices

Apple chief Tim Cook set to top US pay league

Successor to Steve Jobs to earn nearly $400m in stock and salary options over the next decade. By Juliette Garside

Calls for tougher curbs on internet roaming charges

European commission price caps for mobile web access abroad set too high, say MEPs. By Juliette Garside

Wardrobe durch technik: German firm creates online changing rooms

UPcload allows users to store vital statistics on 'online passport' and find out if garments are likely to fit before they buy them online

UK switch to low-carbon energy ‘no dearer than doing nothing’

Prediction using unique calculator challenges view that sustainable energy means higher costs

Overachievers: what it takes to be a bright young thing

Ten of the brightest and best tell their stories – from the first novel optioned at 26 to being head-hunted by Donatella Versace at 24

Arrests over £1m student loan phishing scam

Police say students on government loan schemes conned into revealing bank details, which were then used to withdraw money

Spam texts ‘concern or distress nine out of 10 people’

Study finds messages offering accident compensation are most common nuisance texts, as watchdog continues crackdown. By Josh Halliday

Groupon breaches ASA code for 49th and 50th time in 2011

Advertising watchdog yet again rules against discount website, this time for deals on breast enhancement and Ocado. By Mark Sweney

Groupon to be investigated by Office of Fair Trading

Advertising watchdog refers daily deals website after it was found to have broken UK ad regulations 48 times in 11 months. By Mark Sweney

eBay comes out of cyberspace to open pop-up London store

Showcase shop with no tills appears in Soho in time for the online Christmas shopping rush

Amazon warehouse gears up for Christmas rush on Cyber Monday

Patrick Barkham visits one of the online store's colossal UK warehouses (or 'fulfilment centres') and sees it in full flow for the seasonal spending frenzy

Mobile web users face unlimited confusion over data caps

Juliette Garside: Networks have started capping data as they run out of capacity – but their policies are far from transparent for consumers

eBay pops up on the high street for Christmas

Internet retailer plans pop-up store with no tills in the West End of London to cash in on smartphone shopping boom