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One of the fascinating things about crowdsourcing is discovering the various twists on the concept that entrepreneurs have come up with. I’m absolutely sure that 2011 will throw up some innovative new business models and some very clever start-ups, but even in the existing crowdsourcing palette there are some very neat ideas out there, some of which have been established for a number of years. It’s fun to do a little surfing and see if you can stumble upon the next Quirky.com.