High technology firms are under many competitive pressures, which necessitates ongoing innovation and new product development. In this chapter, the early stages of the innovation process, where it is unclear which technologies have the potential to prevail and take hold in a sector, are examined. Technology intelligence systems, which support innovation in two contexts, are assessed; firstly, industry networks which are under pressure to produce successive innovations on a commercial basis, and secondly, academic networks which address innovation on a less commercial basis. This chapter outlines three different technology intelligence systems based on industry and academic networks and describes the implications in terms of technology management. The first system is based around industry based R&D centres, the second around trade associations, and the third around academic centres.