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BBC Click's LJ Rich looks at some of the best of the week's technology news.

A mobile phone service will automatically switch users between networks to ensure they can continue to receive and make calls in dead zones.

Dick Costolo is stepping down as chief executive of Twitter, the company says, while co-founder Jack Dorsey will act as interim chief until a replacement can be found.

The BBC's Richard Taylor takes an early look at Oculus' final virtual reality Rift headset and explains how it can be used with the Xbox One.

Facebook's virtual reality division Oculus shows off its first consumer headset, which will be sold with an Xbox One controller from early next year.

Clear new laws are needed to cover security services' powers to monitor people's online activity, the UK's terror watchdog says.

Social news site Reddit shuts down five of its forums because they were being used to "harass individuals".

A fraud-proof system of transacting money is being developed - called Blockchain - based on the same technology that underpins Bitcoin.

Four Western tourists have been arrested in Malaysia for allegedly posing for naked photos. Is this a growing phenomenon?

A poster campaign on hundreds of London taxis is intended to highlight the problems black-cab drivers have with rival Uber.