This study recommends a definition of "decision support" that emphasizes communication rather than translation and a strategy by which the small NOAA Sectoral Applications Research program can advance decision support. The book emphasizes that seasonal climate forecasts provide fundamentally new kinds of information and that integrating this information into real-world decisions will require social innovations that are not easily accomplished. It recommends that the program invest in (a) research to identify and foster the innovations needed to make information about climate variability and change more usable in specific sectors, including research on the processes that influence success or failure in the creation of knowledge-action networks for making climate information; (b) workshops to identify, catalyze, and assess the potential of knowledge-action networks in particular resource areas or decision domains; and (c) pilot projects to create or enhance these networks for supporting decisions in climate-affected sectors. It recommends that evaluation of the program be addressed with a monitoring approach.