Back-End Development

• Docker
• Vagrant
• Pyramid
• Play1 Framework
• CakePHP - PHP framework.
• Education
• Laravel - PHP framework.
• Education
• Gems - Packages.
• Phalcon
• Useful `.htaccess` Snippets
• nginx - Web server.
• Dropwizard
• Kubernetes
• Lumen
• Apache Wicket - Java web app framework.
• Vert.x - Toolkit for building reactive apps on the JVM.
• Flask
• Terraform - Tool for building, changing, and versioning infrastructure.
• Rails - Web app framework for Ruby.
• Symfony
• Serverless Framework
• Django

Big Data

• Hadoop - Framework for distributed storage and processing of very large data sets.
• Data Engineering
• Streaming
• Apache Spark - Unified engine for large-scale data processing.
• Big Data
• Public Datasets

Books

• Free Programming Books
• Go Books
• Mind Expanding Books
• Book Authoring
• Elixir Books
• Free Software Testing Books
• R Books

Business

• Open Companies
• Places to Post Your Startup
• OKR Methodology - Goal setting & communication best practices.
• Indie - Independent developer businesses.
• Leading and Managing - Leading people and being a manager in a technology company/environment.

Computer Science

• University Courses
• Tutorials
• Machine Learning
• Tutorials
• ML with Ruby - Learning, implementing, and applying Machine Learning using Ruby.
• Core ML Models - Models for Apple's machine learning framework.
• Speech and Natural Language Processing
• Spanish
• NLP with Ruby
• Linguistics
• Cryptography
• Computer Vision
• Deep Learning - Neural networks.
• TensorFlow - Library for machine intelligence.
• Papers - The most cited deep learning papers.
• Education
• Deep Vision
• Functional Programming
• Information Retrieval - Learn to develop your own search engine.
• Static Analysis & Code Quality
• Data Science
• Open Source Society University

Content Management Systems

• Refinery CMS - Ruby on Rails CMS.
• Wagtail -  Django CMS focused on flexibility and user experience.
• Textpattern - Lightweight PHP-based CMS.
• Drupal - Extensible PHP-based CMS.
• Umbraco
• Craft CMS - Content-first CMS.

Databases

• Database
• MySQL
• SQLAlchemy
• InfluxDB
• Neo4j
• MongoDB - NoSQL database.
• TinkerPop - Graph computing framework.
• PostgreSQL - Object-relational database.
• CouchDB - Document-oriented NoSQL database.
• HBase - Distributed, scalable, big data store.
• RethinkDB

Decentralized Systems

• Bitcoin - Bitcoin services and tools for software developers.
• Ripple - Open source distributed settlement network.
• Non-Financial Blockchain - Non-financial blockchain applications.
• Mastodon - Open source decentralized microblogging network.

Development Environment

• Quick Look Plugins - For macOS.
• Dev Env
• Dotfiles
• Shell
• ZSH Plugins
• GitHub - Hosting service for Git repositories.
• Browser Extensions
• Cheat Sheet
• Git Cheat Sheet & Git Flow
• Git Tips
• Git Add-ons - Enhance the git CLI.
• SSH
• Hyper - Cross-platform terminal app built on web technologies.
• PowerShell - Cross-platform object-oriented shell.
• Terminals Are Sexy
• Command-Line Apps
• FOSS for Developers
• Alfred Workflows - Productivity app for macOS.
• Fish - User-friendly shell.

Editors

• Sublime Text
• Vim
• Emacs
• Atom - Open-source and hackable text editor.
• Visual Studio Code - Cross-platform open-source text editor.

Entertainment

• Fantasy
• IT Quotes
• Science Fiction - Scifi.
• Podcasts
• Email Newsletters

Front-End Development

• ES6 Tools
• Web Performance Optimization
• Web Tools
• Critical-Path Tools
• Scalability
• Must-Watch Talks
• Protips
• React - App framework.
• Relay - Framework for building data-driven React apps.
• Polymer - JavaScript library to develop Web Components.
• Backbone - App framework.
• HTML5 - Markup language used for websites & web apps.
• SVG - XML-based vector image format.
• Canvas
• KnockoutJS
• Dojo Toolkit
• Inspiration
• Android UI
• iOS UI
• Meteor
• BEM
• Flexbox
• Web Typography
• Web Accessibility
• Material Design
• D3 - Library for producing dynamic, interactive data visualizations.
• Emails
• jQuery - Easy to use JavaScript library for DOM manipulation.
• Tips
• Web Audio
• Offline-First
• Cycle.js - Functional and reactive JavaScript framework.
• Text Editing
• Motion UI Design
• Vue.js - App framework.
• Marionette.js - App framework.
• Charting
• Chrome DevTools
• Draft.js - Rich text editor framework for React.
• Service Workers
• Progressive Web Apps
• Redux - State container for JavaScript apps.
• Sass - CSS preprocessor.
• Ant Design - Enterprise-class UI design language.
• Less - CSS preprocessor.
• WebGL - JavaScript API for rendering 3D graphics.
• Next.js - Framework for server-rendered React apps.
• Ember - App framework.
• A-Frame VR - Virtual reality for web browsers.
• webpack - Module bundler.
• Web Components
• Progressive Enhancement
• CSS
• Static Website Services
• Aurelia - App framework.
• PostCSS - CSS tool.
• choo - App framework.
• Angular - App framework.
• Ionic Framework 2
• Browserify - Module bundler.
• Preact - App framework.
• Hyperapp - Tiny JavaScript library for building web apps.

Gaming

• Game Development
• Game Talks
• Unity - Game engine.
• Chess
• LÖVE - Game engine.
• Gideros - Game engine.
• Godot - Game engine.
• Open Source Games
• Construct 2 - Game engine.
• PICO-8 - Fantasy console.
• Game Boy Development

Hardware

• Robotics
• Internet of Things
• Electric Guitar Specifications - Checklist for building your own electric guitar.
• Bluetooth Beacons
• Electronics - For electronic engineers and hobbyists.

Learn

• CLI Workshoppers - Interactive tutorials.
• Learn to Program
• Speaking
• Tech Videos
• Computer History
• Programming for Kids
• JavaScript Learning
• Dive into Machine Learning
• Educational Games - Learn while playing.