Mashable - After powering problem-solving challenges for clients like the U.S. federal government, the city of New York, Michelle Obama, Samsung and the World Bank, ChallengePost has raised $4.1 million to develop a new type of platform -- one that not only solves problems, but helps point them out.CEO Brandon Kessler created ChallengePost about two years ago after discovering a blog post that promised $100 to anyone who made a program that would run Windows on a Mac (at the time, Apple didn't make this easy). Other frustrated Mac users added to the prize money until the pool was up to $14,000, the New York Times had run a story about it, and a programmer submitted a successful solution after just three days.
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