Top Resources

• Codecademy — Intro Web Design (HTML/CSS), JavaScript, Python
  Free, interactive online mini-courses in popular languages. Excellent starting point for learning from scratch!
• HackerRank — Coding/Logic Skills, Interview preparation
  Know the basics? Challenges rated by difficulty/category with automatic test cases - perfect for preparing for interviews, flexing your logic and algorithmic skills!
• Project Euler — Math problems in any language
  Mathematics-based problems requiring algorithmic solutions. Good way to push yourself for the mathematically inclined!

I Don't Know What to Make!

• To Learn Programming, Do Projects You Actually Care About
• Mega Project List — List of programming projects to work on, for programmers of all levels
• Reddit Daily Programmer — Entire Reddit community that posts coding ideas

Web Design (HTML, CSS, JavaScript)

Learning HTML and CSS is the first step towards creating websites:

• Dash — highly recommended interactive introduction to HTML and CSS
• HTML Dog: HTML Tutorials — written guides to HTML for all levels
• Vodien Education— Learn about common document structure

JavaScript is the language that makes websites interactive:

• Codecademy: Introduction to JavaScript — interactive JavaScript guide for beginners
• Mozilla JavaScript Guide — comprehensive guide to JavaScript for intermediate programmers

iOS App Development

Make apps for iPhone and iPad with Swift

• Hacking With Swift — Tutorials for getting started making iPhone apps with Swift - Apple's language for app development
• Start Developing iOS Apps — Apple tutorial for making a simple app to get started

Android App Development

Make apps for Android devices in Java

• Google Android Training — Introduction to using the Android Studio and getting started with simple apps

Virtual Reality Development

• The Technology Behind Virtual Reality: Coding and Design — Overview of the programming languages that are most commonly used for virtual reality.

Git Version Control

Git is a system to keep track of your code - it's used by GitHub!

• Try Git — learn how to use the popular source control program

Paid Resources

• TreeHouse ($9/month with student discount; 14-day free trial) — videos of HTML, CSS, iOS and Android development, and more
• Code School ($19/month with student discount; many free courses) — interactive coding challenges, video lessons, and screencasts

News and Other Resources

Common sources we use to keep up to date and learn about what's new

• CS50 @ Harvard — introduction to computer science course from Harvard
• Hacker News — Tech/startup news, run by a venture capital firm
• WTF is a Hackathon — popular blog post explaining hackathons
• Reddit r/Programming — Large community for all things code related