They also talk about common struggles when learning new things, and trying to remain pragmatic while still pushing the boundaries of what you know.

• Matt's personal website
• Matt's courses at TutsPlus
• DHH's "Why Ruby?" Talk
• Array#forty_two
• Giant Robots Podcast
• DHH on Dependency Injection
• "Too Far Is Just Enough" by Shawn McCool
• Domain Driven Design
• mori
• Immutable JS