Angry gamers have forced Valve to end an initiative that let people who make modifications or "mods" for games get paid for their work.
Yahoo Labs develops a way of identifying smartphone owners by their ears, fists and palms.
Scientists at Stanford University have been showing off MicroTugs - small robots that have superhuman strength.
3D portraits - are they cool or creepy?
The start-ups taming Africa's deadly transport chaos
What are the people like in the dark corners of the web?
Are we in danger of entering a digital dark age?
The Apple Watch ships, but does it deliver?
Can paper survive the digital age?
The company is making changes to the way its search engine ranks sites, and that could send some hurtling down the rankings.
The latest titles and controversies from the video games world