Twentieth Century Music (Classical)

A Guide to the Twentieth Century

The 100 Most Important American Musical Works of the 20th Century

Oldies Music

Popular Music at MSN Encarta

Popular Music Glossary

20th Century Music @ Wikipedia

A History of 20th Century Music

Modern Period

20th Century Pop Culture Class

A Guide to the 20th Century

20th Century American Culture

20th Century America

History of the Twentieth Century

20th Century Fashion History

The Costumer's Manifesto

Timeline of the Twentieth Century

Internet Modern History Sourcebook: The 20th Centure: War, Conflict & Progress

20th Century @ Wikipedia

20th-Century Art

Maine MARVEL (Check Encyclopedia Britannica)

Folk Music History

Costum & Textile: A Century of Fasion, 1900 - 2000;dept=cost;method=centfash;permission=3

American Cultural History: The Twentieth Century

EASE History (Video Clips)

American Memory from the Library of Congress (photos etc.)