In the face of looming challenges like childhood obesity, environmental collapse, and soaring health care costs, we need dramatic and sustained innovation. The driving question behind my research is how technology and organizations can support the innovation process to solve these challenges. In particular, I examine what I define as collective innovation, an innovation process that harnesses the diverse and untapped human, social, and economic capital from distributed networks to discover, evaluate, and implement new ideas. Open, ubiquitous, sociotechnical systems support collective innovation affording greater speed and deeper and broader participation than was imaginable even a decade ago. While collective innovation is a new and exciting collaborative process that has the potential to massively transform society, it is poorly understood. I use grounded theory and design research (Easterday, Rees Lewis, and Gerber 2014) to establish theory and design principles and to develop infrastructure for collective innovation. My pioneering scholarship leads the academy's understanding of this fast-evolving, scalable infrastructure, and directly contributes to its improved functioning to benefit society at large.