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Find human-reviewed topics, resources, and collections using straightforward filters.
244 results
Duolingo
Building a regular beginner practice habit across many languages
BBC Learning English
English listening, vocabulary, pronunciation, and current usage
RFI French Exercises
Improving French through current audio, transcripts, and exercises
USA Learns
Adults learning practical American English
DW Learn German
Structured German study with news and media
Language Transfer
Thinking through sentence patterns with guided audio lessons
web.dev Learn
Focused courses on modern web platform fundamentals
Full Stack Open
Modern JavaScript full-stack development after learning the basics
Khan Academy Computing
Visual introductory programming, animation, and computer science concepts
MIT OpenCourseWare Introductory Programming
University-level programming courses with lectures and assignments
The Python Tutorial
Learning core Python syntax from the language project itself
MDN Learn Web Development
Standards-focused explanations and web development reference
CS50x
A rigorous introduction to computer science and programming
Exercism
Focused exercises and feedback across many programming languages
freeCodeCamp
Browser-based lessons and certification projects
The Odin Project
Project-based web development with local tools
USAspending.gov
Exploring federal awards, recipients, agencies, and spending accounts
NASA Earthdata
Finding satellite and Earth science observations, tools, and documentation
USGS Science Data Catalog
Finding geology, water, ecosystems, hazards, mapping, and other USGS datasets
NOAA Climate Data Online
Historical weather and climate observations for U.S. stations and regions