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There's money in them thar widgets: Clearspring, which helps you build, deploy and track widgets around the web, has raised $10 million more from a single investor, according to a regulatory filing.
We already covered the $5.5 million second round in March 2007, which included AOL founders Steve Case and Ted Leonsis as investors. That came on top of a $2 million round from Novak Biddle Venture Partners in April 2006. So, we're talking $17.5M so far.
Clearspring has also been working with big name clients, including the NBA. Founder Hooman Radfar runs the Widgify blog.