Education
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Cryptopals Crypto Challenges
A famous set of forty-eight hands-on programming challenges that teach modern cryptography by having you break real-worl…
CS 189 Introduction to Machine Learning
The public course site for UC Berkeley's introduction to machine learning, with lecture slides, notes, discussion worksh…
CS 223 Purely Functional Data Structures
A University of Chicago course site on purely functional data structures taught in the Elm language, with lecture notes…
CS 4414 Operating Systems
The University of Virginia operating systems course site, with lecture notes, slides, and assignments that teach systems…
CS 61A Lecture Videos
Berkeley's CS 61A lecture videos from Spring 2014, an introduction to programming and computer science taught in Python…
CS 61B Data Structures
The full Spring 2016 site for UC Berkeley's data structures course, with lecture videos, labs, homework, and projects th…
CS 696 Functional Design and Programming
A San Diego State University course site on functional design and programming, with lecture material and assignments cov…
CS Academy
An educational platform for discovering computer science through interactive lessons and a seamless online code editor,…
CS Unplugged
Free classroom activities that teach computer science with cards, string and puzzles, no computer needed. Printable less…
CS:APP Student Labs
The programming labs from the CMU textbook Computer Systems: A Programmer's Perspective, including the well-known Data L…
CS1000
A beginner-friendly reference site that gives insight into the many subjects around computer science and software engine…
CS231n: Deep Learning for Computer Vision
Stanford's CS231n course notes, a widely used set of free written tutorials on neural networks, convolutional networks,…
CS261: A Second Course in Algorithms
Course page for Tim Roughgarden's Stanford course with lecture notes, problem sets and readings on network flow, linear…
CS50x
Harvard's famous introduction to computer science, available free online with full lectures, problem sets, and a browser…
CSCI E-1: Understanding Computers and the Internet
Harvard Extension School's introductory computer science course site, with lecture recordings that explain how computers…
CSDIY
A self-study guide to computer science that collects the best free university courses, labs, and projects so you can tea…
CST Online
A television studies blog with essays by scholars on TV history, comedy, fandom, remakes and performance, from Invader Z…
Cultural Atlas
A guide to the world's cultures covering communication styles, naming conventions, social etiquette and business norms,…
Cultural Atlas
A guide to the world's cultures covering communication styles, naming conventions, etiquette, religion and family life,…
Curlie
A volunteer-edited directory of the web, the successor to DMOZ, sorting sites by topic and region into categories for br…
Current Archaeology
The website of Britain's longest-running archaeology magazine, covering excavations, museum finds, and archaeological te…
Current World Archaeology
A magazine site covering archaeological digs, discoveries, and heritage sites across every continent, from Bronze Age Eu…
Curt Bloch: Het Onderwater-Cabaret
Leaf through the 95 handmade magazines of satirical poems Curt Bloch made while hiding from the Nazis in the Netherlands…
Cut the Knot
Alexander Bogomolny's encyclopedic collection of interactive math miscellany, with hundreds of proofs, puzzles, and curi…
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