Samsung issued an emergency alert to customers on Monday, asking people worldwide to immediately turn off their Galaxy Note 7 smartphones -- which have been spontaneously catching fire.
The second Clinton-Trump debate generated even more online attention than the first face-off did. Will increased Facebook and Twitter chatter translate to higher ratings?
Big business has warned the British government that it must change its approach to exit negotiations with the European Union or risk serious damage to the economy.
Twitter has been a hit during this presidential election cycle. It has having success with live streams of sporting events too. But Twitter shares are plunging again now that it appears no major tech or media firm wants to buy the company.