The annual Year on Twitter review reveals what got us talking

The year has been dominated by sport, natural disasters, Justin Bieber and Boris Johnson dancing, according to the annual Year on Twitter review, that summarises key worldwide trends and very important tweeters.

To view the gallery of the year on Twitter, click here.

The London Olympics was one of the most tweeted subjects of the year, according to the website, with a tweet from Team GB retweeted over 67,000 times and 150 million tweets went out about the Games. The closing ceremonies (specifically, the Spice Girls’ performance) amassed the largest Games-related spike, 116,000+ Tweets per minute.

Barack Obama's "Four more years" tweet was the most repeated, with more than 810,000 retweets, the tweet, which included a picture of Obama hugging his wife Michelle, went global within two minutes of being sent.

Twitter was inundated with Hurricane #Sandy images, both fake and real. But this image of the natural disaster, tweeted from astronauts at the International Space Station, showed a unique perspective on the disaster.

Unsurprisingly, singer Justin Beiber, with his growing army of 31,321,770 "Beliebers" on Twitter, has a lot of social media clout. His tweet about the tragic death of Avalanna Routh, aka "Mrs Bieber" a six-year-old with brain cancer who he has previously met, gained 220,000 retweets and 100,000 "favourites" from fans.

The site doesn't mention where the Jubilee, Kate and Wills' wedding or #royalbaby announcement came in the ranking...perhaps it's only us Brits that considered it Twitter-worthy?

What was your favourite Twitter spat of 2012? Vote here

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