OER Commons: This resource seeks to collect and distribute a variety of OER at a variety of levels and subjects.
MERLOT: One of the biggest OER repositories, but a bit unwieldy and difficult to search. Use limiting options on the left side of results page
Connexions: Large repository of individual teachers' content, some courses and lots of modular writings about a variety of topics.
The Orange Grove: Florida's collection of open ed sources.
Open Scout:UK based database of business skills teaching resources. Includes articles, tutorials, video and much more in a variety of languages.
AMSER: Materials in the Applied Math and Science Educational Repository are free for use and adaptation. Most resources are at the high school and community college levels.
Edsitement!: Learning objects and lessons from the National Endowment for the Humanities. It offers a large collection of peer evaluated websites.
The Met Open Access
Search 200,000 public-domain artworks in the collection of the Metropolitan Museum of Art that the Museum has already digitally catalogued.
Pixabay
Images free to use without attribution (but note that top row of results usually contains pay for use images).
Flickr: Creative Commons
A collection of images published on Flickr using a Creative Commons license.
NY Public Library Digital Gallery
Free and open access to over 800,000 digital images from the New York Public Library's collections.
U.S. Government Photos & Images
A collection of photos and images, some of which are in the public domain or U.S. government works and may be used without permission or fee. However, some images may be protected by license or copyright.
Open Syllabus Explorer: The OSP is an effort to make the intellectual judgment embedded in syllabi relevant to broader explorations of teaching, publishing, and intellectual history. The project has collected over 1 million syllabi.
GraphLock
A scientific calculator app you can download for $4.99/year or use free online.
Hypothes.is: "Annotate the web with anyone, anywhere"The Hypothesis Project is a new effort to implement an old idea: A conversation layer over the entire web that works everywhere, without needing implementation by any underlying site.
Lumen Leaning: Full Oer Courses in high enrollment subjects
Open Courseware: An independent search engine that indexes open education classes from places like MIT, Yale and UMass.
Saylor.org: Saylor offers full courses online. It can be really helpful to use the reading lists from Saylor to find and organize your courses.
Open Course Library: The WA Open Course Library project offers 81 of Washington's most enrolled courses. There are a lot of great readings in these course files.
LearningSpace from Open University: All of the learning materials presented on this site are CC licensed, but don't confuse "Learning Spaces" with the full Open University- their licensing/copyrights are different.
Academic Earth Find free online courses, lectures, and videos from top universities like Yale, Stanford, MIT, and more.
OCW Utah: Open education course materials aimed at a high school level.
Bridge to Success: Materials, mostly study skills, to support students transitioning to college.
Adapted from "Big List of OER Resources" by Jen Klaudinyi as licensed under CC BY 3.0
Public Library of Science: An open publisher whose mission is to change the nature of sharing scientific research through open access.
Directory of Open Access Journals: The most comprehensive collection of open access journals in a variety of disciplines. Unfortunately, you can search by journal subject, but not by article subject.
Moving Image Archive
A large collection of videos, films and movies that are open and free for your educational use.
The Open Video Project
A repository of open access videos free for your educational use.
Open Culture: The best free cultural and educational media on the web
Ted: Inspiring thinkers on a range of subjects present big ideas and lectures on a regular basis- completely CC licensed.
Wikimedia Commons: The thinkers behind Wikipedia bring you images, video and music all openly licensed or in the public domain.
HippoCampus: HippoCampus, a project of the Monterey Institute of Technology and Education (MITE), is full of high-quality resources in a variety of subjects. It is aimed at high school and college level users.
New York Public Library Digital Collections This site is a living database with new materials added every day, featuring prints, photographs, maps, manuscripts, streaming video, and more.
PhET Science Simulations: These interactive tools from the University of Colorado at Boulder are mostly CC licensed
Jamendo: Songs by musicians who want to share their music
cc Mixter ccMixter is a community music site featuring remixes licensed under Creative Commons where you can listen to, sample, mash-up, or interact with music in whatever way you want.
Sound Cloud Explore the largest community of artists, bands, podcasters and creators of music & audio. Check for terms of use.
Restorm restorm.com is a music platform designed to help musicians; check for specific terms of use.
Internet Archive
The Internet Archive, a 501(c)(3) non-profit, is a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, they provide free access to researchers, historians, scholars, the print disabled, and the general public.
LibriVox Free public domain audiobooks
CLIP Information Literacy Tutorials Find great tutorials on information and research competencies.