From the website: "The Treasury Department is the executive agency responsible for promoting economic prosperity and ensuring the financial security of the United States. The Department is responsible for a wide range of activities such as advising the President on economic and financial issues, encouraging sustainable economic growth, and fostering improved governance in financial institutions." The U.S. Department of the Treasury has a lot of information regarding the current state of the economy and the efforts of the department in investigating, regulating, and reforming the financial sector. Good spot for visual representations of economic data and research reports.
Chaired by Ben Bernanke, the Federal Resereve monitors and controls the U.S. money supply and played an integral role during the financial crisis, advocating for aggressive government intervention. Visit the site for data and research related to their role in the global economy. Links to video, PowerPoint slides, and audio of Bernanke's talk about the Fed's role during the Financial crisis is below.