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Samsung and its agency Cheil dominate the chart this week with three ads, shared a combined 375,000 times.
The Government has relaxed its partnership guidelines, making it much easier for brands such as Asda and Coca-Cola to partner with government ad campaigns such as Change4Life and Think!
Audi supports the launch of the new 'Star Trek' film with a viral that pitches actor Zachary Quinto against original Spock actor Leonard Nimoy.
Beyonce's ad for Pepsi slips out of this week's chart but the megastar makes a reappearance in a spot for H&M, alongside work for the Windows Phone and the Nokia Lumia 920.
Evian's latest baby ad has shot to first place in the chart after being shared 1.5 million times this week.
Young professionals are having two fewer fires a week on the back of the social media efforts of the London Fire Brigade, according to new figures.
The 2012 US presidential election has been referred to countless times as the Twitter election, with the online conversation being an important part of the election from start to finish.
A comic ad from American retailer Kmart has shot to first place in this week's viral chart after being shared more than 1.2 million times in the past seven days.
In wake of the Boston Marathon bombing on Monday, Twitter has donated its top Promoted Trend spot to highlight the messages of hope that are being sent out across the network as people show their support.
The children s charity Kids Company has released a series of films on Twitter s short-form video platform, Vine. The three six-second videos, which are looped, show children in various states of neglect. Each video is accompanied by a plea to donate money to the charity by text. Abbott Mead Vickers...
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