The power of the executive branch is vested in the President, who also serves as Commander in Chief of the Armed Forces. The President appoints his Cabinet of advisers and oversees the various agencies and departments of the federal government. Visit the listed websites to learn more about the executive branch of government.
The White House is the main office of the executive branch of government.
The principal purposes of the Cabinet is to advise the President on any subject he may require relating to the duties of their respective offices.
The Library of Congress maintains this web page of links to executive branch websites.