Open Educational Resources
Includes resources that are openly licensed and can be reused and redistributed by anyone.
BC Campus Open Ed Open Textbook Database
An open educational resource database backed by BC Campus. Offers wide variety of open textbooks for arts, sciences, and business (among many others).
CK12
A community group that offers variety of open educational resources from Flexbooks open textbooks, activities, and simulations.
Community College Consortium for Open Educational Resources
You can find it here for the most part if you want the open educational resources (OER).
freeCodeCamp
Project-based curriculum for web development. Also has its codebase and curriculum open sourced on GitHub.
Personal comment:
It has a forum to interact and has its curriculum open sourced.
IXL
An educational resource and learning site on K-12 curriculum.
JHU Data Science Lab
An organization with the goal of making learning data science accessible. They mainly do their goal by providing open source educational content for learning different subfields on data science.
Khan Academy
There are also other topics outside of programming (i.e. mathematics, physics).
Personal comment:
It's well known and has I think one of the biggest learners' community.
Math Wiki
A community-made and continuously updated textbook on mathematics.
Personal comment:
Well, it is structured like a textbook and it is said that the Math Wiki is a textbook so there's that.
Merlot
An archive site of open educational resources viewable to everyone.
MIT OpenCourseWare
Contains courses from a lot of subjects; you also might want to check out their OCW Scholar Courses wherein they are essentially more in-depth versions of the usual courses.
Personal comment:
Mah boi, I recommend this by a loooooong shot.
MIT Press Open
Yes, free and open access books from MIT Press.
OER Commons
Offers an archive of open educational resources for all educational levels from preschool to college level.
Open Library
A web library backed by Internet Archive that contains books that has opened for public domain. Include books for science, literature, novels, and even recipes.
Open SUNY Textbooks
An open textbook publication platform established by State University of New York libraries and supported by SUNY Innovative Instruction Technology Grants in which they offer their own set of textbooks.
Open Textbook Library
A library of published open textbooks by different professionals and experts from different institutions.
Personal comment:
If you want to look for a wide database of open textbooks, here's one of them that I personally use.
Open University
Features free courses, interactives, and educational materials. They also provide TV & audio programs which is certainly interesting, to say the least.
OpenStax CNX
A database of open educational resources backed up OpenStax. Also offers some community-made books.
OpenStax
A library of open-licensed expert-curated high school- and college-level textbook and resources.
Personal comment:
I recommend this one a lot. It has attained large backup from foundations such as Melinda and Gates Foundation, Google, The Open Society Foundation, and the National Science Foundation.
OSDev.org
A detailed wiki on operating system development.
ossu
A community-built and approved curriculum for self-taught students to follow.
Teach Yourself CS
A site that recommends resources on the topic of learning computer science. Kinda similar to ossu's curriculum.
The Feynman's Lectures on Physics
Well,self-explanatory title is self-explanatory. It's the website that lets you view Richard Feynman's legendary notes on physics.
The Open Source Computer Science Degree
Similar to
ossu, it's a open source curriculum with linked courses from reputable universities such as Stanford, MIT, and Princeton.Wikibooks
Contains community-curated books for various subjects such as Introduction to LaTeX and Introduction to Blender.
WikiToLearn
A collaborative effort made into an introductory wiki for different subjects such as computer science, mathematics, engineering, business, and more.
Personal comment:
One of my personal recommendations right here.
Personal comment:
Recommended for looking/reviewing into high school sciences curriculum.