Bibliography
WorldCat
WorldCat helps users discover books and other materials held by libraries. Visitors can search bibliographic records and find libraries with relevant resources.
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Discover useful websites
Browse hundreds of human-reviewed websites across business, technology, health, home, travel, and more.
Bibliography
Crossref
Crossref provides infrastructure for connecting scholarly records. Its website offers metadata search and services that support identifying and linking research publ...
Bibliography
Mendeley
Mendeley provides reference management tools for researchers. Users can organize documents into collections, annotate PDFs and work with references while writing.
Bibliography
Zotero
Zotero is an open-source tool for managing research references. Users can organize sources, annotate documents and create citations and bibliographies.
History
ushistory.org
ushistory.org provides educational resources about United States history. Its website offers history textbooks, historic documents and information about historical p...
History
HistoryExtra
HistoryExtra publishes history articles, podcasts and other learning content. Its website covers people, events and ideas from a range of historical periods.
History
History Today
History Today publishes articles and book reviews about history. Readers can explore historical subjects through magazine features and its online collection.
History
World History Encyclopedia
World History Encyclopedia publishes educational history articles and reference materials. Visitors can explore historical topics, timelines, maps and teaching resou...
Geology
Geological Society of America
The Geological Society of America supports the geoscience community. Its website connects visitors with research publications, conferences and professional developme...
Geology
Geoscience Australia
Geoscience Australia provides Earth science information and data. Its website includes resources related to geological mapping, natural resources and satellite obser...
Geology
Geology.com
Geology.com publishes articles and reference materials about geology and Earth science. Readers can explore rocks, minerals, maps and other geological topics.
Geology
British Geological Survey
The British Geological Survey conducts geological research and monitoring. Its website provides access to geoscience information, mapping resources and research proj...
Geology
U.S. Geological Survey
The U.S. Geological Survey publishes scientific information about Earth and its resources. Its website includes research and data on geology, water and natural hazar...
Chemistry
Chemistry LibreTexts
Chemistry LibreTexts provides open educational materials for chemistry. Students and educators can browse digital textbooks and learning resources organized by subje...
Chemistry
American Chemical Society
The American Chemical Society provides resources for chemistry education and professional development. Visitors can explore learning materials, events and scientific...
Chemistry
Royal Society of Chemistry
The Royal Society of Chemistry supports the chemical sciences community. Its website provides access to research publishing, professional resources and chemistry eve...
Chemistry
ChemSpider
ChemSpider is a chemical structure database from the Royal Society of Chemistry. It brings together compound information and links to data from multiple sources.