Depending upon your objective, several ways to access federal government information could be helpful: Ben's Guide to U. S. Government is a basic (for kids), but helpful resource if you are just beginning to explore the complexities of the federal government. GPO Access is a good place to search for news and current events regarding federal government information, particularly with the A-Z resource list.
The Executive branch is accessed through the White House website, which features information on the Presidential Transition, US Economy, National Security, Environment, and other relevant issues; and links to Press Briefings and Executive Orders.