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Study and Education
Project Gutenberg
Digital library offering over 60,000 free e-books in the public domain, available in multiple formats (EPUB, MOBI) for download. Focuses on cultural preservation and free access to literature.
Internet Archive
Nonprofit digital library preserving web pages (Wayback Machine), books, videos, and audio files. Offers free access to historical content, including rare manuscripts and vintage media.
Open Library
Collaborative project creating a web page for every book, enabling free borrowing of digital editions or physical copies via interlibrary loan. Integrates with Goodreads for community engagement.
Google Books
Platform from Google for searching, previewing, and purchasing e-books. Features snippets from academic texts, rare books, and full digital editions for sale or rental.
ManyBooks
Free e-book platform with 50K+ titles in 40+ languages, categorized by genre (classics, sci-fi) and device compatibility (Kindle, iPad). Offers daily free book recommendations.
Duolingo
Gamified language learning app with 40+ languages, using quizzes, listening exercises, and streak systems. Features bite-sized lessons and progress tracking for casual learners.
Memrise
Language platform using video lessons from native speakers (e.g., market vendors in Paris) and mnemonic techniques. Focuses on practical phrases for travel and daily use.
BBC Learning English
Free BBC resource with audio/video lessons (e.g., 6 Minute English), news-based vocabulary, and IELTS preparation. Updates weekly with current affairs content.
Busuu
Language app combining AI-powered exercises with feedback from native speakers (via writing/voice reviews). Offers 12 languages and cultural notes for context.
LingQ
Immersive platform using authentic content (podcasts, articles) for language learning. Tracks vocabulary acquisition and suggests personalized reading lists for 50+ languages.
edX
Nonprofit online learning platform with courses from MIT, Harvard, and UNESCO. Offers free audit mode or paid certificates, including microbachelor’s degrees.
Coursera
Leading online learning marketplace with 10K+ courses from 200+ universities. Features specializations (e.g., Google Data Analytics) and degree programs.
MIT OCW
MIT’s open courseware platform, offering free access to syllabi, lecture videos, and problem sets from 2,500+ courses. No enrollment or certification required.
Open Yale Courses
Yale’s free online courses, including Introduction to Psychology and The American Presidency. Features full lecture series and reading lists from undergraduate programs.
Stanford Online
Stanford’s platform for professional learning, offering courses like Machine Learning and executive education. Some courses grant CEUs or graduate credit.
Academic Earth
Platform aggregating free courses from top universities, with video lectures curated by topic (e.g., Quantum Physics or Philosophy). Includes study guides and discussion forums.
FutureLearn
UK-based platform with social learning features (group discussions, peer reviews). Offers courses like Sustainable Development from global institutions.
OpenLearn
The Open University’s free platform, offering 1,000+ courses (e.g., Creative Writing or Neuroscience). No entry requirements, with optional paid certificates.
LinkedIn Learning
Professional skills platform with 16K+ video courses (e.g., Excel for Data Analysis). Certificates automatically update LinkedIn profiles for career visibility.
Coursera – Business
Coursera’s business section, partnering with Wharton/INSEAD to offer Digital Marketing and Private Equity courses, some with case studies and capstone projects.
edX – Business
edX’s business management section, offering Harvard’s Mastering Negotiation and MIT’s Supply Chain Optimization, with simulated business scenario exercises.
Harvard Online – Business
Harvard’s online business platform, focusing on executive courses like Disruptive Innovation and CEO Leadership, with alumni networking and offline seminar access.
Saylor Academy
Nonprofit platform offering college courses like Macroeconomics and Cybersecurity, with ACE-accredited credits available via exams.
Khan Academy
Nonprofit educational platform with free courses in math, science, arts, supporting K-12 to adult learners via interactive practice and personalized dashboards.
CK-12
K-12 math/science resource with customizable textbooks, interactive simulations, and adaptive learning tools aligned to Common Core.
PBS LearningMedia
PBS platform offering education videos and lesson plans aligned to state standards, covering history, physical sciences, etc.
Tynker
Kids coding platform teaching Python and robotics via visual block coding, with game creation tools and STEM projects (e.g., designing Mars rovers).
TeachEngineering
K-12 engineering resource with lesson plans like Bridge Design and Renewable Energy, including 3D printing and Arduino project guides.
National Geographic Education
National Geographic’s education platform offering free resources like Climate Change and Wildlife Conservation, with interactive maps and educator communities.
Magoosh
Standardized test prep platform with SAT/GRE video lessons and smart learning algorithms, adjusting practice difficulty based on mistake patterns.
Kaplan Test Prep
Leading test prep company offering in-person ACT/SAT courses, live online GMAT classes, and med school admissions consulting, with 75+ years of expertise.
ExamTopics
IT certification prep platform with free dumps and community discussions for CISCO CCNA, Microsoft Azure, etc., updating exam questions in real time.
Alison
Free online learning platform with courses like Web Development and First Aid Training, with paid certificates for resume verification.
PrepScholar
Test prep and college admissions platform with personalized SAT/ACT score improvement strategies and essay editing, averaging 220+ score boosts.
Brilliant
Math/science interactive platform teaching calculus and AI via problem-solving, e.g., understanding neural networks through gamified scenarios.
GeoGebra
Free math software integrating geometry, algebra, and calculus, supporting 3D plotting and dynamic equation visualization; teachers can create interactive lesson plans.
Art of Problem Solving
Advanced math education platform offering Olympiad and programming competition courses, including Combinatorics and Python algorithm training for competition contestants.
LabXchange
Science education platform with virtual labs for biology/chemistry, e.g., simulating DNA sequencing and reaction mechanisms, supporting 3D molecular modeling.
Scitable
Scientific learning resource from Nature, with interactive tutorials in genetics and ecology, e.g., understanding natural selection with real research data.
HowStuffWorks
Science education website explaining How Nuclear Power Plants Work and Smartphone Sensor Principles, with animations and expert interviews.
Skillshare
Creative learning community with 100K+ design/photography video courses like Procreate Illustration and Instagram Marketing Strategies, supporting project collaboration.
Canva Design School
Canva’s free design education platform offering Social Media Graphic Design and Brand Color Guidelines, with templates and hands-on exercises.
Coursera Art Courses
Coursera’s arts/humanities section with courses like The Met’s Western Art History and Berklee’s Music Production, some including artwork appreciation.
Domestika
Creative learning platform with 1K+ design/illustration courses taught by industry experts (e.g., Adobe designers), supporting multilingual subtitles.
Open Yale Courses – Psychology, Sociology
Yale’s open courses on psychology/sociology, e.g., Cognitive Psychology and Social Inequality, providing full lecture videos and reading materials.
FutureLearn – Social Science
FutureLearn’s social science section with courses like Cambridge’s Criminal Psychology and University of Sydney’s Cultural Anthropology, supporting group discussions.
Codecademy
Interactive coding platform with Python/JavaScript courses and career paths (e.g., web development), practicing via projects like creating a calculator.
Sololearn
Mobile coding app with free courses in 15+ programming languages (Kotlin, Swift), learning via chat-style interfaces and code challenges.
Code.org
Nonprofit promoting K-12 computer science education, offering Hour of Code and AI intro courses, reaching 50M+ students worldwide.