These sites should be used as a starting point for research; they should be used to find topics that get filled out through more thorough research.
General
1930's Web Quest - loads of links to 30's topics
ArabNet - A listing of Arab countries with data
The Japanese American Internment
Economic History of Eastern Asia
A Short History of Oak Ridge National Laboratory
Art
Salvador Dali - check out index or look at paintings
The Raphael Collazo Museum - Requires some navigation but well worth the effort
Erte Art Deco Museum of Fashion and Theatre
Radio & Broadcasting Technology History
Music
History of Music in the 20th Century - why we sound the way we do
Political Philosophy
Anti-Imperialism in the United States
The Student Left and Youth Liberation in the USA
Marxism - selected writings
The Writings of Marx and Engels - The basis of Communism
Stalinism - Its Origins and Future
Fighting Oppression - gives a good snapshot of political life in the early thirties
The Papers of Martin Luther King
The Culture of Capitalism - check out this site
The Russian Revolution and the Soviet State
A Short History of the Japanese Left - a picture of Japan we don't often see
Objectivism , and Ecological Philosophy,
Judaism in the Modern Western World
Biography
Biographies - all kinds of short biographies on all different types of people
Biography.com - search in biography.com for short bios
World War ll Biographies and related Articles
Time Magazine Man of the Year 1920 to Present
Events
This Day in History - plug in a date in the search box
The Spanish Revolution of 1936
The Marshall Plan and its Consequences
Un General Assembly Resolution 181 - the creation of Israel
The Nanking Massacre - The Germans were not the only war criminals
Yalta and the Beginning of the Cold War
The Wars for Vietnam: 1945-1975
From Sideshow to Genocide - the Cambodian Holocaust
The Modern Era in the Middle East
updated04/24/01jg