Electronic Engineering

A range of high-quality resources for Electronic Engineering and Computer Science are available on the web. For subject specific resources look at these guides:

• Computer Sciences
• Creative computing
• Electronic Engineering
• Digital multimedia
• Digital music
• Machine Learning and Artificial Intelligence
• Robotics
• Web design/development

Circuits/Microcontrollers

• All about circuits: An online community for electric engineers. Includes open access books and other connected material which can be accessed without membership.
• Arduino: A microcontroller technology. that enables you to explore and create functionality more efficient.
• Circuit Basics: Contains tutorials "about basic circuit design, programming, the Arduino, and the Raspberry Pi".
• Circuit Lab: Allows users to simulate circuits.
• Upverter: A free cloud-based circuit board design tool.

Digital signal processing

• The Scientist and Engineer's Guide to Digital Signal Processing: Steven Smith's companion to his book, does have downloadable material.

Matlab

• Learn with MATLAB and Simulink Tutorials: Training videos from the creators of Matlab.
• Control tutorials for MATLAB and Simulink: Guide to help you use MATLAB for the analysis and design of automatic control systems.

Free courses, instruction

• MIT Opencourseware: Many free courses for Electronic Engineering students. Their free video lecture series around circuits and electronics can be of extra interest.
• Linkedin Learning: Offers a big range of tutorials and courses for many difference skills, also electronic engineering.

General information portals

• Electric engineering and technology (Electrical4u): Freely available study site, which aims to move beyond the textbooks to explain concepts within electrical engineering. Includes a set of MCQ.
• Electrical Engineering Portal: Regularly updated website, good for recent advancements in the field. Includes technical articles, free guides, electrical software, video lectures and Excel spreadsheets for download. They also have an app available.
• Electronics Basics: An introduction to electronics, provided by the company Rohm Electronics.
• Electronic Engineering Stack Exchange: An electronics and electrical engineering question and answer site. You can also search by tags.
• Engineering.com: A digital media resource, which aims to progress the field of engineering.
• Hyperphysics: An exploration of physics through concepts maps, which also ties in with electronic engineering.
• Learn about Electronics: Aims to support individuals who want to learn about electronics. It has chapters in many areas, such as circuits & resistors, semiconductors, AC theory etc.
• The Science Buddies: A useful guide which outlines the similarities and differences between Engineering Design method with scientific research method.
• The Scots Guide to Electronics: A guide from University of St. Andrews to help in the understanding of components, circuits and the use of electronics for beginners.

Journals, blogs, vlogs and podcasts

• EE Times: Keep yourself updated with this online magazine.
• EEVBlog: Popular blog/vlog created by David L. Jones, an electronics design engineer, from Sydney, focusing around technology and new development with the field.
• ETRICAL: Blog covering many aspects of electrical engineering. There are also 500+ interview questions and answers available. 
• The Spark Gap Podcast: A popular podcast covering "the nuts and bolts of embedded electronics". 

Communities

• EDN Network: Community for engineers by engineers.
• Hackster: In this community, users share open-source project tutorials, aiding in learning to design, create and program electronics. Particularly useful for mini-projects.