Twoppics, the stories behind the hottest topics on Twitter.

Hot twoppic of the moment is Former Prime Minister of England - Gordon Brown. Brown will still serve as a back bench member of Parliament while Conservative leader David Cameron takes over as the new Prime Minister. The 43-year-old will be the youngest Prime Minister in nearly two centuries @rogbi200 tweets You know you're getting old when the Prime Minister is younger than you... Prime Minister David Cameron is your hot twoppic of day.

Hot twoppic of the week is Social Media - there is lots of social media news this week: Twitter is testing the "Twitter Business Center," a bevy of new features designed to help companies use the site to grow their businesses. And Twitter creator Jack Dorsey's new product called Square is now generally available to users in the iPhone  App Store for free. Square is a way to let people accept physical credit card payments from their mobile phone. It works with a tiny card reader that plugs into the headphone jack -- it takes fingerprint signature on the touchscreen, and  generates email or text receipts. Another sign that the age of social media is upon us: McDonald's has named its first ever director of social media.

This is @TheKateMalloy and those are your hot @Twoppics on FOX News Radio.

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