Number 46: Good neighborIf Kendall Square were a suburban office park, it would be one of the most high-powered ones in the world. Whos got offices there? Akamai. Amgen. Biogen Idec. Draper Laboratory. Fidelity Investments. Genzyme. Google. Microsoft. Novartis. Not to mention, of course, the magnet for all of them: MIT. The Kendall Square Association has 130 members, and MIT is the linchpin that helped build up one of the most innovative neighborhoods in the country. More than half of Cambridges tax revenue comes from Kendall Square, and most of the citys largest taxpayers are there.