Regional Advantage is an interesting analysis of why pioneering high tech companies in the Rt. 128 Boston area lost their technical and market dominance to silicon valley start-ups. Firms such as Digital Equipment, Wang Computer, Prime Computer, Apollo Computer were either acquired or dissolved while their Silicon Valley competitors Sun Micro Systems, HP, Cisco, 3Com, Silicon Graphics and others gained marketshare and technical leadership. Saxenien's analysis suggests that the major variable is in the culture of openniness, communication, cooperation and partnering between firms in Silicon Valley versus the buttoned-down, closed and proprietary nature of New England managers was the significant difference. Having worked in both Silicon Valley and East coast high tech firms, I support her hypothesis. While not a page turner and one night read, for those of us exposed to both enviornments, Anno Saxenian's effort (which was her doctorial thesis at MIT) is an interesting look at the evolution and transference of technical leadership from east to west.