Google calls for greater transparency and challenges surveillance gag order

Tech firm US petitions government to allow it to publish number of user accounts affected by secretive court's requests

Huawei banks on the rise of the selfie for world’s thinnest smartphone

Smartphone's 'instant facial beauty support' capitalises on growing trend for 'selfies' and will retail below price for latest Apple iPhone

Boot up: Google Glass privacy, Facebook video ads, iOS 7 apps threat, Kazam smartphones and more

Plus Android Humble Bundle, Apple/Samsung duopoly, music identity, Rihanna and Justin Bieber's YouTube battle, and more. By Stuart Dredge

Video games (for promoting science)

Dean Burnett: It's time there were video games that actively promoted science

Web firms pledge £1m to help block child abuse images

Culture secretary says leading internet service providers have agreed to change approach and work more closely with police

Francesca Annis, actor – portrait of the artist

Stage and screen actor Francesca Annis talks about the cult of celebrity, going nude for Roman Polanski and the pressure of playing a famous beauty

Buzzfeed sued by photographer for $3.6m over ‘copyright breach’

Website removed link to article after initial complaint, but lawsuit alleges 'direct and contributory infringement'. By Josh Halliday

Man of Steel leaps predecessor in a single bound as waiting game pays off

Charles Gant: Seven years after Superman Returns debuted disappointingly, the series reboot has opened faster than a speeding bullet

Mindshare Worldwide’s Nick Emery on big data – Cannes Lions video

The chief of the global media buying network explains how big data is transforming the advertising industry

Facebook executive: advertisers need to control consumer data

Cannes Lions: Chief engineer says companies still target myth of 'captive' audience and fail to embrace digital. By Mark Sweney

Yahoo joins other technology giants in revealing US surveillance requests

Company follows Facebook, Microsoft and Apple in publishing details of data requests from law enforcement agencies. By Stuart Dredge

Smartphones and the rise of child accidents

Using a mobile while walking down the street is a challenge for most adults, but new figures reveal that children may be even more at risk from life-threatening distractions

Microsoft beefs up Windows Phone voice recognition technology

But smartphone buyers may be less interested in Deep Neural Networks, and more keen to know whether Windows Phone 8 has their favourite apps. By Stuart Dredge

Internet service providers step up efforts to block child abuse images

Culture secretary says companies have agreed to change approach and work more closely with police