From markets to social learning : mapping the dynamics of design, use, and early evolution of new technology -- Biography of technologies and practices : studying technology across time and space -- The birth of the user : community and imagination -- The anticipation of need : investigations and intermediaries -- Visions in matter : invention and erosion -- Nurturing technology : enactment and impact -- The post-launch change : learning and reconfiguring -- Diabetes databases : co-design, its evolution, and power relations -- Telechemistry : radical innovation, deviance, and path formation -- Conclusions : findings and theorizing -- Implications : policy, evaluation, and development practice.