Free web apps that don't require registration or login
Learn X by doing Y - A project-based learning search engineaquadzn.github.io/learn-x-by-doing-y/
Project Based Learning is a teaching method in which students gain knowledge and skills by working for an extended period of time to investigate and respond to an authentic, engaging, and complex question, problem, or challenge.
Directory of Open Access Journalsdoaj.org/
DOAJ is an online directory that indexes and provides access to quality open access, peer-reviewed journals.
monostable/awesome-electronics: A curated list of awesome resources for electronic engineers and hobbyistsgithub.com/monostable/awesome-electronics
awesome-electronics - A curated list of awesome resources for electronic engineers and hobbyists