BBC News - Technology

6 December 2011 Last updated at 09:24 ET

Twitter reveals 2011 hot topics

This year tweeters have been most interested in Charlie Sheen, the Arab Spring and the McLobster, according to Twitter.

Researchers create a prototype memory chip that they claim promises faster data access and will last longer than current technologies.

From 6 December, adult content sites can buy their own .xxx domain but the launch is not without controversy.

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