Web

• The Front-End Optimization Checklist
• [asp.net 5] PRoduction Ready Web Server on linux. Kestrel + nginx
• Creating and Debugging C# Console Apps with Visual Studio Code on OSX
• An End-to-End AngularJS Guide
• Implementing a reverse proxy in Golang on Google App Engine
• Comparing NodeJS IDEs (now with ST3 and WebStorm!)
• Node.js Modules System
• Front-End Stack for EveryDollar
• Useful Node.js interview questions

Other

• Comparing application Deployment: 2005 vs. 2015
• Ten Useful Techniques in Go
• Learning Go with Flashcards and spaced repetition
• Image processing with Go
• Efficient Image Resizing With ImageMagick
• Go has a debugger—and it's awesome!

.NET

• Pooling Buffers for Better Memory Management

Mobile

• How to Improve Android App Performance
• Protocol-Oriented Programming in Swift
• Introducing Swift Education
• An Introduction to Kotlin

java

• JVM Architecture
• What Is String Intern In Java?