Arianna Huffington, president and editor-in-chief of The Huffington Post Media Group, speaks at the 2014 World Economic Forum. Reporters and editors in 15 countries will contribute to "What Works," her site's new initiative focused on covering positive news. Ruben Sprich/Reuters/Landov hide caption

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Actor, playwright and composer Noel Coward rehearses for a show in 1951. A rare recording of Coward introducing his play Peace in Our Time is just one of the millions of sounds and recordings the British Library is looking to preserve. Jimmy Sime/Getty Images hide caption

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Reporter Glenn Greenwald, who became famous reporting on NSA contractor Edward Snowden's disclosure of the NSA's government surveillance programs, is leaving the Guardian to form a new media company with eBay founder Pierre Omidyar. Vincent Yu/AP hide caption

itoggle caption Vincent Yu/AP