NISO has released The Future of Library Resource Discovery.
Here's an excerpt from the announcement:
The white paper was commissioned by NISO's Discovery to Delivery (D2D) Topic Committee as part of its ongoing examination of areas in the discovery landscape that the information community could potentially standardize. Included in the paper is an overview of the current discovery environment; descriptions of how these technologies, methodologies, and products may be able to adapt to potential future change; and a look beyond current models of discovery to explore possible alternatives, especially those related to linked data.