K‑12 Learning Sites
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Khan Academy
Free lessons in math, science, programming, and more.
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NASA Kids’ Club
Explore space with interactive games and videos.
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Cool Math Games
Engaging math challenges for all ages.
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History.com
In-depth articles, videos, and timelines.
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Science Kids
Fun experiments and science news.
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Duolingo
Learn a new language through bite‑size lessons.
Higher Education & Research
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JSTOR
Access to scholarly articles across disciplines.
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Google Scholar
Search academic literature with citation tracking.
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edX
Massive Open Online Courses from top universities.
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ResearchGate
Connect with researchers and share papers.
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WorldCat
Find books, journals, and media in libraries worldwide.
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Cornell University Library
Extensive research guides and digital archives.
EdTech Platforms
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Moodle
Open‑source learning management system.
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The ChemCollective
Virtual labs for chemistry students.
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Codecademy
Learn coding interactively.
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AoPS
Math community with contests, forums, and courses.
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Classcraft
Gamified classroom management.
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Memrise
Spaced repetition flashcards for languages.
Massive Open Online Courses
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MIT OpenCourseWare
Free lecture notes, exams, and videos.
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Harvard Online Learning
Courses from Harvard’s faculty.
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Stanford Online
Professional education and academic programs.
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Udacity
Nanodegree programs in tech and AI.
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Coursera
Courses from universities worldwide.
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edX
Open courses and professional certificates.
Online Libraries & Archives
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Internet Archive
Free books, movies, software, and more.
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Project Gutenberg
Over 60,000 public domain eBooks.
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Library of Congress
American history resources.
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Britannica Online
Encyclopedia for quick research.
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arXiv.org
Preprint archive for physics, math, CS.
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data.gov
Open government data portal.
Teacher & Classroom Resources
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Teachers Pay Teachers
Buy & sell lesson plans and activities.
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Curriculum.com
Ready‑to‑use K‑12 curriculum.
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r/Teachers
Reddit community for educators.
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Schoology
Learning management platform.
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Education.com Games
Curriculum‑aligned learning games.
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WeAreTeachers
Lesson ideas & classroom hacks.
Looking for something a bit more light‑hearted? Play a game!