Python Playground
Mahesh Venkitachalam
Art of R Programming
Norman Matloff
Building Multi-Tenant SaaS Architectures
Tod Golding
Open Source Projects - Beyond Code
John Mertic
Practical Design Patterns for Java Developers
Miroslav Wengner
Software Architecture Patterns
Mark Richards
Communication Patterns
Jacqui Read
Technology Strategy Patterns
Eben Hewitt