Funding bodies, the economics of publishing, and the affordances of Web 2.0 platforms have spurred learned societies, publishers, and scholars to experiment with new media venues for scholarly communication. Why, then, have we seen few wide-spread changes in how scholars disseminate research in most disciplines? Drawing on qualitative interview data from the Mellon-funded Future of Scholarly Communication Project (2005-2011), we describe how scholars share their work-in-progress and the disciplinary values driving these practices. We then discuss credit, time, and personality as...