How Breakthroughs Happen: the surprising truth about how companies innovate. Andrew Hargadon. Harvard Business School Press, 2003.  

Hargadon discusses the role of the technology brokers, and how they gather the raw materials for innovation. He argues—successfully in my opinion—that almost all innovations come about be recombining existing elements to make something new. For example, the iPod recombined a hard disk, a screen, MP3 and so on to make an innovative device. This book is worth reading to see how technology broking works in many different organisations.