Other Sources of Information
CRA Government Affairs: contains advocacy resources and action alerts, covering the areas of computer science and computing. SIAM is a member of the CRA.
The Coalition for National Science Funding (CNSF): SIAM is a member of this organization. Its goal is increasing the national investment in The US National Science Foundation's research and education programs.
The Computing Research Association (CRA) has a policy blog that may interest some. SIAM is a member of the CRA.
Board on Mathematical Sciences and their Applications (BMSA): BMSA is a board under the U.S. National Research Council (NRC). The mission of the Board on Mathematical Sciences and Their Applications is to improve the quality of analysis used in government decision-making and to help maintain a vibrant mathematical sciences research enterprise. The Board carries out its mission through studies and reports.
AAAS R&D Budget and Policy Program: a terrific resource for information on the US federal R&D budgets. The AAAS annually does extensive reports and analysis on the budget.
American Physical Society (APS): contains policy statements of the APS and alerts to scientists, focusing on science funding issues. Also contains advice on how to communicate with one's congressional representative.
The Networking and Information Technology R&D (NITRD) Program: NITRD coordinates federal R&D in several areas, including High End Computing.