(1) Summarizing Knowledge
(Encyclopedic Articles, Textbooks & Histories, Handbooks, Research Reviews)

Encyclopedias

American Heritage Encyclopedia of American History. E 174 .A535 1998 
Encyclopedia of World History.  D 21 .E539 1998
Oxford Encyclopedia of Ancient Egypt  DT 58 .O94 2001
Penguin Encyclopedia of Classical Civilizations  CB 9 .P46 1993
Encyclopedia of Ancient Civilizations  CB 311 .E53
Encyclopedia of the Middle Ages  D 114 .E53 1999
Encyclopedia of the Renaissance  CB 361 .E52 1999
Facts on File Encyclopedia of the Twentieth Century  D 419 .F33 1991
Gale Encyclopedia of Multicultural America  E 184 .A1 G14 2000

Textbooks & Histories
Amazon New & Used Textbooks in United States History
Cambridge Ancient History  D 57 .C25

Cambridge Medieval History  D 117 .C3

New Cambridge Medieval History  D 117 .N48 1995

Cambridge Modern History  D 208 .C17
New Cambridge Modern History  D 208 .N4

Handbooks
Introduction to Ancient History  Z 6202 .B413
United States History: A Selective Guide to Information Sources  Z 1236 .B57 1994 (also electronic access)
Reference Sources in History: An Introductory Guide  D 20 .F75 1990

Research Reviews
Reviews in American History  E 171 .R47 (also electronic access)
 

(2) Selective Bibliography
(Research & Subject Guides, Selective & Didactic Bibliographies, Subject Directories)

Research & Subject Guides
Modern Researcher.  D 13 .B334 1992
Guide to the Sources of Medieval History.  D 117 .C2213
Sources of Information for Historical Research  D 20 .S563 1994
 

Selective & Didactic Bibliographies
Bibliographies in American History: Guide to Materials for Research  Z 1236 .A1 B4 1959
Bibliographies in American History, 1942-1978: Guide to Materials for Research.  E 178 .B42 1982
Bibliography of Native North Americans (BNNA)
Guide to Historical Literature  Z 6201 .A55

Subject Directories
Academic Info: History
Argus Clearinghouse: History

Education Index: History 

Librarians’ Index to the Internet: History
World History Compass
WWW Virtual Library: History
 

(3) New Information
(Most frequently cited journals, electronic texts, government information, books & monographs, news & newspapers, article databases)

Journals (most frequently cited)
American Historical Review  E 171 .A57 
Journal of American History  E 171 .J87 
Environmental History  GE1 .E585 
Journal of African History  DT 1 .J65 also electronic access
Journal of Modern History  D 1 .J6 
International Review of Social History  HN 1 .I53 also electronic access
Past & Present  D 1 .P37 
Comparative Studies in Society and History  H 1 .C73 also electronic access
Ethnohistory  E 51 .E8 also electronic access
Journal of Interdisciplinary History  D 1 .J59  also electronic access

Electronic Texts
Lecture List for Western Civilization II
Gutenberg-E
HarpWeek
JSTOR - LORA
Project Muse - LORA

Government Information
Congressional Universe
FirstGov 

Books & Monographs
 

News & Newspapers
 

Article Databases
 

Abstracts & Indexes
America: History and Life
Historical Abstracts
History of Science, Technology, and Medicine
Index to Early American Periodicals
Oral History Index: An International Guide to Oral History Interviews  D 16.14 .O74 1990 

Comprehensive, Recurrent Bibliographies
Annual Bulletin of Historical Literature  Z 6205 .H65  (also electronic access)
International Medieval Bibliography  Z 6203 .I63

Library & Book Catalogs, Archives
ArchivesUSA
Carl Albert Congressional Archives
Library of Congress
Making of America University of Michigan
National Archives and Records Administration
Oral History Collections  AI 3 .M4
Smithsonian National Museum of American History
Western History Collections
U.S. Army Center for Military History

Search Engines
Academic Info World History Gateway

(5) Reference Resources, Facts & Data
(Almanacs, Biographical Sources, Dictionaries , Directories, Grants & Scholarships, Job Resources, Statistical Resources)

Almanacs

Atlases
Times Atlas of World History G 1030 .T54 1994

Biographical Sources
American National Biography  CT 213 .A68 1999
Biography and Genealogy Master Index Online  LORA
Genealogy Master Index  LORA
Cambridge Biographical Encyclopedia  CT 103 .C26 1994
Dictionary of National Biography  DA 28 .D47 1996

Chronologies
Chronology of World History  D 11 .M39 1999
Encyclopedia of World Facts and Dates  D 11 .C37 1993
 

Data Collections
United States Historical Census Data Browser

Dictionaries
Dictionary of Ancient History  DE 5 .D53 1994
Oxford Classical Dictionary  DE 5 .O9 1996
Dictionary of the Middle Ages  D 114 .D5 1982
Historical Dictionary of the American Revolution  E 209 .M36 1999

Directories --  Associations, Organizations & Societies
Directory of Historical Organizations in the United States and Canada  E 172 .A53812

Directories --  Discussion Groups

Directories --  Research Centers & Institutes
University History Department Around the World
Directory of History Departments and Organizations in the United States and Canada  D 16.3 .G83
 

Grants & Scholarships

Job Resources

Statistical Resources
US Census Bureau