The 1920s - http://www.louisville.edu/~kprayb01/1920s.html - divided into a timeline, people and trends, and the remarkable decade. Great information and links to other sites for more research.
The Academy of American Poets - Poetry Exhibits-Harlem Renaissance - http://www.poets.org/exh/Exhibit.cfm?prmID=7 - gives a brief biography, places the author in the time period, provides list of works, and some of the works themselves.

All About Jazz - http://www.allaboutjazz.com/timeline.htm - try this link for a jazz timeline. When you click on a year, you will find important events that happened in the jazz world.

All Music Guide - http://www.allmusic.com/ - Search by artist at the top of the screen. Biographical information, chronology, and related artist are listed.

America's Jazz Heritage - http://www.si.edu/ajazzh/ - the sections on exhibitions and link should prove to be the most usefull.

Big Band and Jazz Hall of Fame - http://www.jazzhall.org/jazz.cgi - select a category, instrument, style or just enter a musicians name. Then click Search the Database and each name links to a biography. Jazzology introduces different styles, from ragtime and swing, to be-bop and Latin jazz.

Breaking Racial Barriers - http://www.npg.si.edu/exh/harmon/ - an exhibit that features Bunche, Du Bois, Johnson, Robeson and many others. Includes portraits and biographies.

Duke Ellington: A centennial celebration - http://americanhistory.si.edu/events/elling/ - a wealth of information on everything Ellington, brought to us by the Smithsonian Institute. You won't want to miss a virtual tour of his collection that uses photographs, sound recordings, and oral histories to gain insight into the music, life, and career of one of America's greatest twentieth-century musicians.

Famous Cases of the FBI - http://www.fbi.gov/fbinbrief/historic/famcases/famcases.htm - presents articles on many of the historic cases that were solved by the Federal Bureau of Investigation.

Flapper Culture & Style - http://www.pandorasbox.com/flapper.html - original artilces and images from the 1920s illustrate what it meant to be a flapper. Also includes information on Fitzgerald and jazz music.

The Harlem Renaissance - http://www.fatherryan.org/harlemrenaissance/ - breaks this time period into literature, performing arts, visual arts, and events of the 1920s. This site was created by 3 high school students.

Harlem Renaissance - http://www.geocities.com/Athens/Forum/4722/big.html - breaks this time period into the following categories, poetry, politics, women, jazz, and theater.

Jazz: A Film by Ken Burns - http://www.pbs.org/jazz/ - the biography section has not only information on many musicians, but also many audio clips.

Le Tumulte Noir - http://www.npg.si.edu/exh/noir/index.htm - French poster artist Paul Colin (1892-1985), Baker's life-long friend published a portfolio of vividly colored lithographs titled "Le Tumulte Noir" ("The Black Craze") which captured the exuberant jazz music and dance that dazzled Paris. These are shown here, along with biographical information on Baker.

Lindy Hop - http://www.savoystyle.com/ - "The history of the Lindy Hop is told in the pages of this Archive, through the biographies of the dancers and information on old filmclips."

Literary Resources on the Net - http://andromeda.rutgers.edu/~jlynch/Lit/american.html - a collection of annotated links to sites on the Internet dealing with American literature. At the top of the list are sites dealing with literature in general and then you will find the links to specific authors.

Louis Armstrong: A Cultural Legacy - http://www.si.edu/ajazzh/armstron.htm - a good biography with lots of images from their collections.

North by South - http://www.northbysouth.org/ - explores the multiple dimensions of the Great Migration of African-Americans from the rural South to Northern cities. Presented by Kenyon College in Gambier, Ohio.

The People of Jazz Index - http://www.jazzhall.org/jazz.cgi - the search engine allows you to find biographies by period and style.

Perspectives in American Literature (PAL) - http://www.csustan.edu/english/reuben/pal/table.html - provides outlines and bibliographies of hundreds of authors; use either the alphabetical list or the list by time period.

Rhapsodies in Black: Art of the Harlem Renaissance - http://www.iniva.org/harlem/intro.html - An introduction to this period of the flowering of the arts: music, painting, dance, and literature in the black community in Harlem. Included are backgrounds for a few artists, a bibliography, and a chronology.

Schomburg Exhibition, Harlem 1900-1940 - http://www.si.umich.edu/CHICO/Harlem/ - an exhibition from the Schomburg Center for Research in Black Culture. The timeline allows one to see what events were happening by year and contains links to other web sites. The Resources section includes links to sites on topics such as culture, education, Harlem, literature, music, and the news.

Shadowball: recalling the Negro Leagues - http://www.iwaynet.net/~harlansw/negro-league/ - allows you to search by team and player.

StudyWeb - http://www.studyweb.com - try the Literature section for "American-20th century" and the Music section for the form of "Jazz."

xrefer - http://www.xrefer.com - more than 50 ready reference sources. When in doubt, keep the search at search all and see what it comes up with. You might be surprised.