Ruby-Doc.org - Ruby documentation project: links and downloads of programming information, on many aspects of Ruby. Ruby Embedded into C++ - Describes how to embed Ruby interpreter in C++, gives skeleton to build on, treats concepts of embedding, advanced topics like SWIG. Descriptions, code, diagrams, links, news. Ruby User's Guide - Original Japanese version by matz. First English translation by GOTO Kentaro and Julian Fondren. Further translation and editing by Mark Slagell. RubyLearning.com - Set of thorough study notes, and class, for those new to Ruby and meeding a solid introduction to its concepts and constructs. By Satish Talim. Phrogz - By David Thomas and Andrew Hunt. Offers a beginner guide to start with the language. Ruby Koans - A tutorial to learn the language's syntax, structure, and some common functions and libraries by making tests pass.