About.com - Guard and Reserve Information: Information and resources all about the United States National Guard and Military Reserves.
Employer Support of the Guard and Reserve (ESGR): A Department of Defense national committee that works with employers, reservists, military leadership, and volunteer committees to build and maintain a base of support for the role of the National Guard and Reserve in our Nation's defense.
National Guard Association of the U.S.: The voice of 500,000 citizen soldiers, includes National Guard Magazine, Library and a members only section.
The Enlisted Association of the National Guard of the United States: EANGUS exists to "promote the status, welfare and professionalism of the enlisted members of the National Guard of the United States" and "promotes adequate National Security."
The National Guard Bureau: The federal agency which allocates missions and resources for the federal mission of the National Guard of the several states and territories.