The Executive Branch of the Federal government consists of the President, Vice President, the Cabinet, and the various departments and agencies charged with administering federal law and regulations, and protecting the nation. The executive branch also can and does propose legislation to Congress, appoints federal judges, and formulates domestic and foreign policy.
Some useful resources specific to the Executive Branch are:
The American Presidency Project. (University of California. John Wolley and Gerhard Peters) Contains selected public messages, statements, speeches, and news conference remarks issued by the President, also documents such as Proclamations, Executive Orders, etc. from Herbert Hoover to the current president.
Compilation of Presidential Documents. (U.S. Government Publishing Office) Contains the Weekly Compilation of Presidential Documents, the Daily Compilation of Presidential Documents, Compilation of Presidential Documents, and presidential statements, messages, remarks, and other materials from 1993-present. The Weekly Compilation of Presidential Documents and the Daily Compilation of Presidential Documents which are the official publications of materials released by the White House Press Secretary, while the Compilation of Presidential Documents is published by the Office of the Federal Register (OFR), National Archives and Records Administration (NARA).
The White House. Current information and links to events, news briefings, etc. at the White House and Executive Branch. 1600 Penn contains information about various branches of the federal government, the Constitution, state and local governments from the federal perspective, etc.