freeCodeCamp.org's open-source codebase and curriculum. Learn math, programming, and computer science for free.
A collective list of free APIs
:books: Freely available programming books
A curated list of awesome Go frameworks, libraries and software
:octocat: 分享 GitHub 上有趣、入门级的开源项目。Share interesting, entry-level open source projects on GitHub.
Command-line program to download videos from YouTube.com and other video sites
