Como el único sitio de referencia en línea creado específicamente para bibliotecas, Britannica Online® Public Library Edition contiene contenido completo para todos los usuarios, desde estudiantes de primaria hasta estudiantes universitarios, desde profesionales de negocios hasta curiosos de la tercera edad.
Gale Virtual Reference Library is a database of encyclopedias and specialized reference sources for multidisciplinary research. These reference materials once were accessible only in the library, but now you can access them online from the library or remotely 24/7. Because each library creates its own eBook collection, the content you see may vary if you use the database at different libraries (your school, your public library, or your office).
A one-stop source for news and periodical articles on a wide range of topics: business, current events, economics, education, environmental issues, health care, humanities, law, literature and art, politics, science, social science, and many general interest topics. Millions of full-text articles, many with images, allow students and researchers to find current and relevant information.
Global Issues in Context offers international viewpoints on a broad spectrum of global issues, topics, and current events. Relied upon for researchers with its analysis of social, political, military, economic, environmental, health, and cultural issues. Each of these gateway pages includes multi media information and an overview with unique "perspectives" articles written by local experts.
U.S. History in Context is for all students seeking contextual information on hundreds of the most significant people, events and topics in U.S. History. Find authoritative reference content with full-text magazines, academic journals, news articles, primary source documents, images, videos, and audio files.
World History in Context is an engaging online experience for those seeking contextual information on hundreds of the most significant people, events and topics in World History. Search authoritative reference content with full-text magazines, academic journals, news articles, primary source documents, images, videos, and audio files.
The Arizona Memory Project provides access to the wealth of primary sources in Arizona archives, museums, libraries, and other cultural institutions. Visitors to the site will find some of the best examples of government documents, photographs, maps, and multimedia that chronicle Arizona's past and present.
The Digital Public Library of America is a free, fully digital resource for homework, lifelong learning and family research. Access primary sources, images, videos, documents and much, much more from cultural institutions across the United States.
Use Public Library of Science for scientific research on an open source platform that gives you tens of thousands of peer reviewed journal articles for research, homework help and lifelong learning.