Reference 2

88. Wikipedia: Wikipedia serves as a good starting point for any research project or subject of study.
89. The William and Flora Hewlett Foundation Library: Look up reports and information about education, social issues and anthropology, and more.
90. CIA World Factbook: Find anything you want to know about other countries, including demographics, maps, flags, histories and more.
91. Encyclopedia Smithsonian: This immense resource categorizes material into three main categories — art and design, history and culture, and science and technology — with lots of subcategories.
92. Open-Site: This "free Internet encyclopedia" is edited by volunteers.
93. U.S. Government Manual: Main Page: Learn all about the U.S. government and how it operates.
94. Open Content: Use this open education search and reference tool to find the courses and materials you want.
95. iBerry: iBerry is a network of open education students, teachers and organizations that can help you connect to the resources you need.

Reference

When you need an overview of a specific subject or field, use these free references from Stanford, the Mayo Clinic, and more.

88. Stanford Encyclopedia of Philosophy: Stanford University’s encyclopedia has online archives dating back to 1997.
89. Creative Commons: This online project of free, open, shareable information features a science community and more.
90. Mayo Clinic: Look up drug information, symptoms, diseases and more health information at the Mayo Clinic’s site.
91. Episteme Links: Find course materials, e-texts, encyclopedia entries and all kinds of educational resources dealing with philosophy.
92. SparkNotes: This popular online handbook has analyses and summaries of historical events, novels, poetry, film, science and more.

International

Check out these international colleges and universities that have also made available learning resources for free.

78. UNU OpenCourseWare: United Nations University has courses in software technology, environment and health, and economics and social research.
79. African Virtual University: Access a digital library and more on the open distance learning network.
80. China Open Resources for Education: Also known as CORE, this network features resources from U.S. schools and more.
81. ParisTech "Graduate School": Find French language courses in math and the sciences at ParisTech.
82. University of Southern Queensland: Take classes in science and technology from USQ here.
83. Grenoble Ecolde de Management: Take management classes in French.
84. UDEM Open Courseware: This is the open courseware site for the Universidad de Monterrey.
85. Kyoto-U Open Courseware: Kyoto University offers lots of free courses here.
86. EduNet Vietnam: Access open e-textbooks and other learning resources.
87. Middle East Technical University: METU’s eduCommons site offers courses in mechanical engineering, physics, educational sciences, foreign language and more.

Libraries and Archives

Make use of the resources from the Library of Congress, World Digital Library, Smithsonian and other archives and libraries.

66. The Fathom Archive: Columbia University’s archive collection is full of learning resources from the University of Chicago, New York Public Library, and a lot more.
67. Thomas Jefferson Digital Archive: The University of Virginia Library has posted electronic texts, The Jeffersonian Cyclopedia, and other resources.
68. American Memory from the Library of Congress: View collections from the Library of Congress in areas like religion, music, maps, advertising, African American history, and more.
69. World Digital Library: This project, which involves the support of the Library of Congress and other organizations, has thousands of learning materials from all over the world.
70. Primary Sources on American Art and Artists: The Smithsonian Archives of American Art supports this online collection.
71. Internet Archive: The Internet Archive boasts texts, audio, posts and more for exploring history, pop culture and beyond.
72. Russian Archives Online: This site links to film, photo and other archives and exhibitions at state museums and other organizations.
73. The National Archives: Archives.gov is an immense resource for learning about U.S. history.
74. Library of Congress Digital Collections: The LoC also provides public access to historic newspapers, American history collections, poetry and literature, and more.
75. OSA Archivum: Look up archived materials about the Cold War and Eastern European culture, politics and society.
76. The Rosetta Project: The Rosetta Project holds archives of every human language in the world.
77. U.S. Census Bureau: Here you can look up maps, economic census reports, projections, and a lot more to analyze U.S. history and society.

Online Networks and Institutes

These online networks and open education groups have made it easier for you to explore subjects and find the information you need to supplement your traditional education.

54. dgCommunities: The Development Gateway Foundation hosts communities, projects and information related to development issues on this site.
55. Open Learn: The Open University’s open education site online features a collection of courses in study skills, technology, business, art and history, law, and more.
56. Wikiversity: Wikiversity currently holds nearly 11,000 open education resources.
57. Sofia: Sofia offers a solid collection of courses in science and technology from various colleges.
58. PEOI: Find courses in law, the sciences, health care, humanities and more from the Professional Educational Organization International.
59. Digital History: Look up primary sources, multimedia materials and more relating to American history and ethnic groups.
60. Exploratorium: This open education site for younger kids includes materials about science, climate change, sport science, the ancient world, and a lot more.
61. W3Schools.com: Find web design and development tutorials here.
62. HighWire Press: Browse over 1,200 journals and over 6 million full-text articles at HighWire Press, by Stanford University.
63. iTunes U: Download free lectures and presentations from top universities at iTunes U.
64. Open Courseware Consortium: Look up course materials in this open education directory.
65. OER Commons: This large open education site and community has over 12,000 learning resources in science and technology alone.

Media

If a certain TV show, magazine article or book intrigued you, head online to these sites to learn more about the people, events, cultures, and laws that rule our world.

43. National Geographic: National Geographic’s website supports learning materials for the environment, animals, world cultures, music, space, and a lot more.
44. Discovery Channel: Get free learning sources about health, space, the military, the ocean and more.
45. Nature: This science journal has lots of free web resources, too.
46. BBC Training and Development: This BBC site features open courses for learning about broadcasting, health and safety, new media and journalism.
47. Book TV: On the Book TV website, you can watch videos of author lectures and interviews.
48. Biography: Find videos, photo galleries and biographies about historical figures and pop culture icons.
49. New York Times: The article archive on the New York Times site has PDFs and links to over 13 million articles, spanning 150+ years.
50. PBS: Kids and adults will find lots of helpful videos and learning resources on PBS.com.
51. The History Channel: Check out the online magazine, watch videos, and research categories like the military, science and technology, U.S. presidents, and more.
52. NPR: NPR’s website is a great resource for studying books, culture, current events, world history, and more.
53. BBC Languages: BBC’s collection of video language courses includes tutelage in French, Spanish, German, Italian, Greek, Portuguese, Chinese and more.

Podcasts and Videos

This collection of podcasts and videos comes from universities, museums and other important organizations.

34. Open Culture: This website provides videos, podcasts and other open education videos in literature, finance and beyond.
35. Nobel Prize Media Player: Watch documentaries, interviews, lectures and speeches from Nobel Prize winners and more.
36. Harvard Video Archive: Harvard’s collection of videos and other learning media cover all fields and industries.
37. UChannel: Princeton has archived its video public affairs lectures here.
38. NASA Multimedia: Check out NASA TV, plus image galleries, podcasts, 3D resources and more materials to learn about space exploration.
39. Global Voices: Watch videos and listen to podcasts about global events and news.
40. Open Source with Christopher Lydon: The Watson Institute and Brown University hosts this open source radio show that covers political elections, the military, global warming, and more.
41. Public Radio International: On PRI’s site, you can stream shows, listen podcasts, watch videos, discuss news stories and learn about the people and issues changing the world.
42. "Shakespeare" by Another Name: Mark Anderson’s Shakespeare site broadcasts mp3 files.