Tracking biodata: sharing and ownership was a pilot research funded by the RCUK Digital Economy Nemode network. The project examined social and policy implications of emerging models of sharing and ownership, in relation to the use of personal data & biodata. It focused on a) user practices and b) online service provision models of personal data analytics and self-tracking. It involved interviews and participant observation with specific Silicon Valley internet start-ups & Quantified Self actors in the San Francisco area. The project was attached to a research placement at the Science and Justice Research Center, University of Santa Cruz, in Spring 2014.