The primary focus of agricultural research and extension in eastern Africa is technology generation and dissemination. Despite prior critiques of the shortcomings of this approach, the consequences of such activities continue to be measured through the number of technologies developed and introduced into the supply chain. At best, impact is assessed by the total numbers of adopters and by the household and system factors influencing adoption. While the diffusion research tradition has made substantive advances in recent decades, attention to what (...) happens to technologies after adaptive, on-farm research trials continues to be limited in practice. While a host of newer approaches designed to correct for past shortcomings in diffusion research is now available, integrative methodologies that capitalize on the strengths of these different traditions are sorely needed. This article presents a more encompassing methodology for tracking the fate of technological interventions, illustrating the potential applications of findings for enhancing the positive impact of agricultural research and extension in the region. (shrink)