The CORE-Materials repository contains 1670 open educational resources (OERs) in Materials Science and Engineering, freely available under a range of Creative Commons licenses. (Source: CORE webpage)

Electromagnetics Volume 1 by Steven W. Ellingson is a 225-page, peer-reviewed open educational resource intended for electrical engineering students in the third year of a bachelor of science degree program. This work is licensed under a Creative Commons ShareAlike 4.0 licence.

World’s largest Science, Technology & Medicine Open Access book publisher. The website contains more than 3,000 open access books distributed under CC BY 3.0 license in various subjects.

This textbook emphasizes connections between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigour inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result.

The collection provides textbooks in Fluid mechanics, Electrical engineering, Probability, ...
Open Textbook Library (OTL) provides textbooks that have been funded, published, and licensed to be freely used, adapted, and distributed. These books have been reviewed by faculty from a variety of colleges and universities to assess their quality. They can be downloaded for no cost, or printed at low cost. All textbooks are either used at multiple higher education institutions; or affiliated with an institution, scholarly society, or professional organization (Source: OTL).

MathsCasts are produced by the mathematics support centres at Swinburne (Australia), the University of Limerick (Ireland) and Loughborough University (UK). They are mostly targeted at prerequisite to first year level, in a range of subjects such as: Engineering, Sciences, Business, Computing and Technology

StatsCasts are narrated screen video recordings of explanations of statistical concepts. They are produced by Swinburne University of Technology, the University of the Sunshine Coast, and the University of Southern Queensland. They are targeted at prerequisite to first year level, in a range of subjects such as: Engineering, Sciences, Health Sciences and Business.

Specific subjects: Dynamic and control, Aeronautical engineering, Material sciences, Cellular solids, Robotics,...
EdX is an online learning destination and MOOC provider, offering high-quality courses from the world’s best universities and institutions to learners everywhere. Currently, Edx is offering thousands of courses in various subjects for different study levels.

Specific courses: Process Dynamics and Controls; Introduction to Engineering: Design in the Real World; Introduction to Finite Element Methods; Lectures on Continuum Physics;...
Providing openly licensed materials ranging from course materials to videos to software tools to student work, ready for downloading and remixing.

Specific subjects: Biological Engineering, Chemical Engineering, Civil Engineering, Electrical Engineering, Nanotechnology, Materials Science,...
MIT OpenCourseWare (OCW) is a web-based publication of virtually all MIT course content. OCW is open and available to the world with materials from 2340 courses now. Through OCW, educators improve courses and curricula, making their schools more effective; students find additional resources to help them succeed; and independent learners enrich their lives and use the content to tackle some of our world’s most difficult challenges.

Stanford Engineering Everywhere (SEE) expands the Stanford experience to students and educators online and at no charge. A computer and an Internet connection are all you need. The SEE course portfolio includes one of Stanford's most popular sequences: advanced courses in artificial intelligence and electrical engineering.

Specific topics: Why helmets don't prevent concussions — and what might, How humans could evolve to survive in space, How megacities are changing the map of the world, A robot that runs and swims like a salamander,...
TED is a non-profit devoted to spreading ideas, usually in the form of short, powerful talks (18 minutes or less). TED is a global community, welcoming people from every discipline and culture who seek a deeper understanding of the world. On TED.com, there is a clearinghouse of free knowledge from the world's most inspired thinkers — and a community of curious souls to engage with ideas and each other (Source: TED webpage).

Specific courses: Aerospace engineering, Biomechanical design, Biomedical design, Chemical engineering, Electrical engineering, Industrial design engineering,...
TU Delft Open Course Ware provides free and open educational resources of high quality university‐level, organised as courses.

Specific subjects: Aerospace Engineering; Chemical Engineering; Civil and Environmental Engineering; Electrical and Computer Engineering; Materials Science and Engineering; Nanoscience and Nanotechnology; Operations Research, Systems Engineering and Industrial Engineering;...

Fields of research: Aerospace Engineering; Automotive Engineering; Biomedical Engineering; Chemical Engineering; Civil Engineering; Electrical and Electronic Engineering; Geomatic Engineering,...