Education
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Chesscourt Mission
A free puzzle game that gives chess a new spin. Over 20 single-player levels twist the rules, so you have to rethink how…
Chessgames.com
A chess community and database of nearly a million historical games, with player biographies, puzzles, and move-by-move…
ChessGoals
A chess improvement blog offering study plans built from survey data, with training advice for players who are aiming to…
Chessort
A chess puzzle game where you sort candidate moves from best to worst according to the engine evaluation, training your…
Chicago Film Archives
A preservation archive holding thousands of films, videos, and audio recordings that represent the Midwest, with a brows…
Chicago-L.org
An exhaustive fan-built history of the Chicago 'L' elevated train system, with station-by-station histories, vintage pho…
Child & Family Blog
A blog of research-led parenting and child development articles for caregivers, practitioners, and policy makers, coveri…
Children's Books Online
A free online library of children's stories from the Rosetta Project, many with parallel translations that suit young re…
Children's Railway, Budapest
A narrow-gauge railway in the Buda Hills that has been run by schoolchildren since 1948, with timetables, route maps and…
Chill Subs
A modern, searchable directory of literary magazines and small presses, built to help writers and readers discover where…
China Comes to MIT
A bilingual digital exhibit on MIT's first Chinese students from 1877 to 1931, with archival photos, student profiles an…
Chinese A Day
An interactive guide to the origins of Chinese and Japanese characters, with animated calligraphy and stories that trace…
Chinese Flashcards
A browser-based flashcard trainer for learning Mandarin Chinese vocabulary, with study decks you can work through at you…
Chinese Foot Binding - Lotus Shoes
An online exhibit from the Museum of the City of San Francisco on the history of Chinese foot binding, with 19th-century…
Chinese Posters
A collection of over 1,700 Chinese propaganda posters, with background on their history, design and the political campai…
ChipBuilder
A browser game where you build a computer from scratch, starting with logic gates, designing circuits, constructing a CP…
Choo Choo Words
A free real-time word game where you drag letter tiles to spell words and lay track before the train catches you, with w…
Choose A License
A plain-spoken guide to picking an open source license, comparing the common choices side by side so you can decide what…
Choral Public Domain Library
A volunteer-run library of free choral sheet music scores spanning centuries of vocal repertoire, all in the public doma…
Chord Fret
A guitar chord finder that calculates voicings automatically, showing chord shapes on the fretboard for whatever chord y…
Chord Nebula
A simple browser game that helps you learn chords and basic chord progressions through play, aimed at beginner musicians…
Chorder
A guitar chord database with fingering diagrams and details for every chord, so you can look up any chord and see exactl…
Chordinates
An educational web toy from Pios Labs that turns 2D graphs and equations into piano and guitar sounds so you can hear wh…
Chris Blattman
A Columbia University professor's blog on development, conflict and policy research, with candid commentary on statistic…
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