STEM is not just for students!  The Tech Hub Caucus and the Newton/Needham Chamber of Commerce are sponsoring a free event on March 18, 9:30-11:30AM at TripAdvisor (directions) to discuss challenges and opportunities that technology companies face as they grow and expand in Massachusetts (including Rte. 128 and the N-Squared Corridor) and the role of public policy in their success.  Speakers include local and state government officials, as well as representatives of TripAdvisor, Assembla, BigBelly Solar, Mobiquity, and Olin College of Engineering.  Register online.