Direct Learning Platforms:
Khan Academy
Saylor Academy
Santander Open Academy
SDG Academy
edX
FutureLearn (Free to Audit)
British Council (English & Skills)
Alison (Free Learning)
TCS iON Career Edge
HP LIFE
Microsoft Learn
Amazon AWS Educate
Google Skillshop
Cisco Networking Academy (Skills for All)
Palo Alto Networks (Beacon)
UNICEF Agora
NPower (Tech Fundamentals)

Global Institutional Resources (Open CourseWare):
California Community Colleges OER
CSU MERLOT
Duke University (Free Section)
MIT OpenCourseWare (OCW)
MITES Semester (MIT)
Open Yale Courses
Stanford Online (Free Section)
Carnegie Mellon Open Learning Initiative (OLI)
The Open University (OpenLearn)
Open University of Australia (Open2Study)
University of the People (UoPeople)
Academic Earth
Open Culture (1,500+ Courses)

Open-Source Knowledge & Technical Archives:
The Internet Society (Learning)
GitLab University
MongoDB University
OpenStax
OER Commons
Project Gutenberg
NASA STEM Engagement
FreeCodeCamp
Code.org
Cognitive Class (IBM)
IBM SkillsBuild
FEMA National Disaster & Emergency Management University (NDEMU)
ISC2 Certified in Cybersecurity (CC)
OWASP Training
The Linux Foundation (Training)
World Digital Library (WDL)

Journalist & Technical Specialist Certification (Self-Paced):
UNESCO Online Courses
Knight Center for Journalism (Self-Paced)
NBCU Academy
The Thompson Reuters Foundation (E-Learning)
AHCJ Health Journalism Certification
Media Defence
CFR Education (Council on Foreign Relations)
HubSpot Academy
Google Digital Garage
WIPO Academy (World Intellectual Property Organization)
World Health Organization (OpenWHO)
SciLine Crash Courses