American Popular Entertainment Collection: Entertainment industry-related newspapers from 1853-1929 from the University of Illinois.
Boston Public Library Newspaper Databases: Historical and international online newspaper databases that can be accessed by registering for a BPL eCard account.
Bowling Green State University: This libguide from BGSU contains links to a variety of historical newspapers.
Chronicling America: Search newspaper pages from 1836-1922 or use the U.S. Newspaper Directory to find information about newspapers published between 1690-present. From the Library of Congress.
Google Magazines: An alphabetical listing of thousands of English-language magazines from Google. Note: Click the cover to see all available issues for each title.
Google Newspapers: An alphabetical listing of thousands of freely-available digitized newspapers from Google.
Historical Newspapers by State - U.S.: Resource Guide from the University of Pennsylvania Libraries.
NewspaperCat: Catalog of Digital Historical Newspapers (NewspaperCat) is a search engine for online digitized historical newspaper content from newspapers published in the United States and the Caribbean. From the University of Florida.
Time magazine vault: Back issues of Time magazine to 1923. Requires a free registration for full access.
Wikipedia list of newspaper archives An ever-changing list of newspaper archives from around the world.
African American
Black Enterprise, 1970-2000
Black World/Negro Digest, 1961-1976
Ebony, 1959-2008
Ebony Jr., 1973-1985
Jet, 1951-2008
U.S. Black Engineer and IT, 1980-2012
Women of Color, 2001-2012
Culture and Politics
Elections Today, 1990-2004
Life, 1936-1972
Mother Jones, 1976-2000
New York, 1968-1995
Spy, 1986-1997
Texas Monthly, 1973-1992
LGTBQ
The Advocate, 1994-2006
Out, 1999-2006
Music
Billboard, 1942-2010
CMJ Music Monthly, 1995-2008
Jazz Times, 1994-2001
Spin, 1985-2012