AULIMP: The Air University Library's Index to Military Periodicals is a subject index to significant articles, news items, and editorials from English language military and aeronautical periodicals. The Index contains citations since 1990 and is updated quarterly as the hard copy version of the AULIMP is released.

Brookings Institution: The scholars of this Institute offer full-text research in PDF format for the following diciplines: business, defense, global economics, U.S. economics, education, environment and energy, global politics, U.S. politics, science and technology, and social policy.

Company of Military Historians: "MILITARY UNIFORMS IN AMERICA now numbers over 800 titles, and comprises the most extensive documentation ever undertaken of this subject. Representing the work of different member artist, these brilliantly colored prints illustrate military units from North and South America, and the units of any country that saw service in the Western Hemisphere. A documented descriptive text accompanies each text."

Defense and International Relations: "Sponsored by First.gov website you can search millions of web pages from federal and state governments, the District of Columbia and U.S. territories. Most of these pages are not available on commercial websites. FirstGov has the most comprehensive search of government anywhere on the Internet."

Department of Homeland Security: This is the official Web Site for the Department of Homeland Security.

Department of State: Full-text documents on United States foreign policy and worldwide diplomatic relations, including annual reports by the Secretary of State. Many international topics are covered such as terrorism, diseases, and foreign travel.

Saban Center for Middle East Policy: "The Iraq Index is a statistical compilation of economic, public opinion, and security data. This resource will provide updated information on various criteria, including crime, telephone and water service, troop fatalities, unemployment, Iraqi security forces, oil production, and coalition troop strength." (Be sure to view the Iraq Index archive as well)

Society for Military History Links: The SMH has compiled a list of links to web sites and resources on various military topics. Resources include: Archives/Museums/Online Records, Online Publications, Organizations/Societies, Links Pages, Other Government/Official Sites, Vendors/Tours, Finding Veterans/Veterans Organizations, General Interest.

Terrorism Resources: The librarians at the University of Colorado at Boulder University Libraries have compiled a list of terrorism resources. "In addition to resources on terrorism, this page also links to information on the wars in Iraq and Afghanistan, as well as resources on the September 11th attacks."

U.S. Army Center of Military History: "The (CMH) is responsible for the appropriate use of history throughout the United States Army. Traditionally, this mission has meant recording the official history of the Army in both peace and war, while advising the Army Staff on historical matters. The Center traces its lineage back to those historians who compiled the Official Records of the Rebellion, a monumental history of the Civil War begun in 1874, and to a similar work on World War I prepared by the Historical Section of the Army War College."

Army: Official site for the United States Army containing complete information and links to the Army and its operations both home and abroad.

Center for Strategic and International Studies: The Center for Strategic and International Studies has been dedicated to providing world leaders with strategic insights on—and policy solutions to—current and emerging global issues.

Coast Guard: A good site to find latest information on Homeland Security and related sites on the United States Coast Guard.

Department of Veterans Affairs: An extenstive website on Veterans affairs, benefits, special programs and complete listing of departments.

Federation of American Scientists: Official site for the FAS, which was formed in 1945 by atomic scientists from the Manhattan Project who felt that scientists, engineers and other innovators had an ethical obligation to bring their knowledge and experience to bear on critical national decisions, especially pertaining to the technology they unleashed - the Atomic Bomb.

Marines: Official site for the United States Marines containing complete information and links to the Marines and its operations both home and abroad.

Naval Historical Center: "The NHC Website allows you to research any number of naval history topics online and check out new public and educational programs and exhibits offered at Navy museums all over the country."

Navy: Official site for the United States Navy containing information on enlisting, ships, official documents and numerous links.

Official Museum of the United States Air Force: Use this site to locate timelines, and historical information on major battles in U.S. Military history.

The Pilots Database: "The PILOTS database is an electronic index to the worldwide literature on post-traumatic stress disorder (PTSD) and other mental-health consequences of exposure to traumatic events. It is produced by the National Center for PTSD, and is electronically available to the public. This site is sponsored by the U.S. Department of Veterans Affairs."

Special Operations: This site features military service in the United States and the International Special Forces with excellent photographs and background on each special force in the U.S. Navy, Army, Air, and Marine Corps.

United States Department of Defense: "The mission of DefenseLINK is to support the overall mission of the Department of Defense by providing official, timely and accurate information about defense policies, organizations, functions and operations. Also, DefenseLINK is the single, unified starting point for finding military information on-line."

Understanding War: The Institute for the Study of War (ISW) is a non-partisan, non-profit, public policy research organization. ISW advances an informed understanding of military affairs through reliable research, trusted analysis, and innovative education. The Institute provides information on current military operations and responds to emerging threats in order to achieve U.S. strategic objectives.

White House: The Executive Branch of the United States including current policies, video clips of news conferences, White House Briefings, plus the latest actions and decisions of the President of the United States.

World War I Document Archive: "This archive of primary documents from World War I has been assembled by volunteers of the World War I Military History List. International in focus, the archive intends to present in one location primary documents concerning the Great War."

World War II Document Archive: This collection of full-text digital documents from World War II has been assembled by The Avalon Project at Yale Law School.

World War II Resources: iBiblio is hosting a scholarly selection of primary source materials available on the web, including Pearl Harbor History, and U.S. Military involvement in World War II.