I participated in a WBZ radio breakfast panel yesterday on the Boston start-up community and recently delivered the presentation below at the Harvard Innovation Lab as part of an HBS Entrepreneurship Club Event. It reflects a survey of the local start-up ecosystem that dissects what it takes to build a great ecosystem.
My friend Brad Feld talks about this topic in his new book on Startup Communities, as summarized in his fun Kauffman video "Sketchbook":
SEEING BOTH SIDES 
Fantasic work Jeff. Thanks for continuing to remind the world that Boston is the innovation hub. I notice that you humbly left out Seeing Both Sides as a must read/follow – anyone here already knows that.
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