A round-up of our website's best technology stories

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The BBC's technology correspondent Rory Cellan-Jones gives an interactive round-up of the week's top technology stories, as covered by BBC News online.

First a great British computing success story. The Raspberry Pi is the cheap credit card sized computer aimed at getting children to code, which has been a huge hit with hobbyists too.

The latest version of the Pi was launched this week. As you can see here it doesn't look any different, but the Pi creator Eben Upton explained to me that it is much faster.

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Media captionHANDS-ON: Rory Cellan-Jones talks to Raspberry Pi creator Eben Upton about the latest model

Do you find charging your phone a bit of a hassle - you can never find the right cable?

Richard Taylor, our man in Silicon Valley, has been checking out the latest developments in wireless power, potentially a much easier way to charge your phone, if they can get it right.

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Media captionThe BBC's North America technology correspondent Richard Taylor is given a demo of wireless innovations from Witricity's Grant Reig

Trolling is the ugly side of our online behaviour - and Twitter has become a magnet for anyone wanting to be mean, aggressive and just plain nasty.

We know this because Twitter's boss Dick Costolo has acknowledged the problem in a memo to staff. Read more about that right here.

And finally, the mysterious tale of the man who is showering tens of thousands of dollars on gamers who stream their play on the online games network Twitch.

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Media captionBBC Trending looks at a mystery haunting gamers on Twitch

Our friends at BBC Trending have been asking who he is and why is he passing out so much cash?

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