While it is too early to set standards or even memorialize best practices for selection of collections for digital reformatting, libraries, funders, and research, development, and policy groups can take actions that will minimize the chances that current investments will be wasted. These include taking deceptively simple steps in the course of decision-making, assessing progress and change, tracking expenditures across all phases of activity in a consistent manner, and engaging the widest possible group of people, from technologists to scholars, in selection, assessment, and planning. The following recommendations come from a variety of sources in the field. All are based on experience and reflection about what has worked to date, and what next steps must be taken to advance the building of sustainable and valuable digital collections.