From royal babies and twerking, to boy bands and Andy Murray: Twitter reveals the hot topics of 2013.
Journalists often use Twitter for information on breaking stories - but when the story of three women held in domestic "slavery" broke on Thursday, one social media user decided to play a prank.
As Twitter shares float on the New York stock exchange, the twitterati transmitted the event... through tweets, of course.
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It was the most hotly awaited public offering since Facebook - and as soon as the social media site Twitter began trading, the value of its shares shot up, valuing the firm at more than $31 billion.
As One Direction are ranked more influential on Twitter than David Cameron and Nigel Farage, Channel 4 News looks at the role of influence and power in social media.
Beheading? Yes. Breastfeeding? No. Facebook is on thin ice by allowing videos of beheading. The problem is that it has become more than just a social network, and is effectively a media organisation.
On the same day British Gas announces that energy bills will rise by ten per cent, it launches a question and answer campaign for its customers on Twitter. But it perhaps hasn't gone quite to plan.