1904 World's Fair in Forest Park http://angam.ang.univie.ac.at/ LiveMiss/ stlouis/ slwf1904.htm
Brief history of the St. Louis world's fair and the film Meet Me in St. Louis.

American Variety Stage: Vaudeville and Popular Entertainment,1870–1920 http://lcweb2.loc.gov/ ammem/ vshtml/ vshome.html
A large collection of material on mass entertainment in the early 1900s. Includes collections of theater playbills and programs, sound recordings, motion pictures, and scripts.

Amusement Park History http://history.amusement-parks.com/
Amateur site providing historical information and photographs of Coney Island and amusement parks around the country.

Barnstorming and the Negro Leagues: 1900s–1930s http://lcweb2.loc.gov/ ammem/ jrhtml/ jrhome.html
To commemorate the 50th anniversary of Jackie Robinson's entry into baseball's major leagues, this Library of Congress site details the early history of African Americans in baseball.

Baseball Almanac http://www.baseball-almanac.com/
This site provides a detailed history of baseball as well as current baseball information and statistics.

St. Louis World's Fair Trivia http://www.crawforddirect.com/ facts.html
A page of interesting facts about the St. Louis World's Fair.

The Baseball Chronology http://cbs.sportsline.com/ mlb/ history
Concise chronology of America's favorite pastime, including images, links, and biographies.

CircusWeb: Circuses Past and Present http://circusweb.com/ circuswebFrames.html
This site provides information about the history of the circus. It offers an overview of many of the touring U.S. circuses, and links to other circus-related sites.

The Early Motion Pictures and Sound Recordings of the Edison Companies http://lcweb2.loc.gov/ ammem/ edhtml/ edhome.html
Biography of Thomas Alva Edison with links to downloads of film clips from early motion picture, such as the The Great Train Robbery, and audio clips from early sound recordings produced by the Edison Manufacturing Company.

Joyrides http://www.joyrides.com/
A collection of photographs of amusement park rides from across the country.

The National Baseball Hall of Fame and Museum http://www.baseballhalloffame.org/ hofers_and_honorees/ lists/ index.htm
Online exhibit from the Cooperstown, N.Y., baseball museum. Includes information on each Hall of Fame inductee.

Baseball Cards: 1887–1914 http://lcweb2.loc.gov/ ammem/ bbhtml/ bbhome.html
A sample of the Library of Congress's collection of early baseball cards.