Facebook boss Mark Zuckerberg defends the aims of his free Internet.org service after several Indian firms pull out of the project.
A camera powered by the light it uses to take pictures has been invented by American scientists.
Schools in Los Angeles seek refunds from Apple and others over a $1.3bn (£870m) iPad-based education project that has gone awry.
Can big data reveal the mood of the electorate?
Will Moore's Law last another 50 years?
Why is Bing gaining on Google in the US?
Can Etsy keep its soul after going public?
The start-ups that want your electronic junk
The EU's case against the search giant
New figures show that in Europe Google has between 90% and 95% of the desktop search market - in the US it's only 64%. Why?
The latest titles and controversies from the video games world