Shares in online game maker Zynga rise strongly after the firm reports a smaller-than-expected loss and plans to cut costs by laying off 18% of its workforce.

Electric car maker Tesla reports better-than-expected first quarter results, sending shares up more than 5% in trading after US markets had closed.

There is a dramatic rise in the number of technology patents filed that relate to reading brainwaves.

Chinese e-commerce giant Alibaba appoints a new chief executive as it announces a 45% increase in quarterly revenues.

Japanese videogame maker Nintendo makes its first annual operating profit in four years, beating its forecast as well as the market's.

A former government adviser says employers must tackle a "macho culture" of workers feeling under pressure to check emails outside office hours.

A new driving test, which looks at how well drivers use sat-nav, is being tested in the UK.

A US appeals court rules that bulk collection of phone records by the National Security Agency is illegal.