This volume is part of a growing body of work that maps the evolution of high technology small firm research over almost a complete decade since 1993. Begun during a period of relative neglect of high technology small firms (HTSFs) during the early 1990s, the book series has witnessed, and perhaps played some part in creating, a resurgence of interest in this type and scale of enterprise in the United Kingdom and mainland Europe by the turn of the century. Throughout this period, specific interest within the high technology small firm study area has ebbed and flowed, with some rather obviously important issues (e.g. policy and finance) often to the fore, while new and resurrected areas of concern have also contributed to the research agenda. Perhaps the best example of resurrection has been the rebirth of interest in the subject of clustering (or agglomeration) as it applies to HTSFs, notably led by Michael Porter. This interest has extended, and put a new slant upon, work consistently well represented in these volumes on networking. This trend is evidenced by the presence of four papers in the concluding Part IV of this volume on "Clusters and Networks". Earlier themes comprise groups of papers on "Science Parks and University Spin offs" (Part II), and "Markets, Strategy and Globalization" (Part III). Both individually and in aggregate, this series of books on HTSF development and growth issues represents a "one stop shop" for all those seeking to gain a broad understanding of the evolution of HTSF research since 1993 by providing a record of the manner in which this research agenda has evolved over these years.