If you're new to Go, we recommend following the tutorial while consulting the language spec. Then read Effective Go, as it addresses many common beginner questions.
Keep these under your pillow.
The built-in documentation for the Go standard library.
The built-in documentation for the Go tools.
The official Go Language specification.
A document that specifies the conditions under which reads of a variable in one goroutine can be guaranteed to observe values produced by writes to the same variable in a different goroutine.
The first tutorial. An introductory text that touches upon several core concepts: syntax, types, allocation, constants, I/O, sorting, printing, goroutines, and channels.
A document that gives tips for writing clear, idiomatic Go code. A must read for any new Go programmer. It augments the tutorial and the language spec, both of which should be read first.
This codelab takes the reader through the creation of a simple wiki web application. It touches on structs, methods, file I/O, http, regular expressions, and closures.
An introduction to Go for C++ programmers.
How to write a new package and how to test code.
A German translation of the Go Tutorial.
Answers to common questions about Go.
Answers to common questions about the design decisions behind Go.
Answers to common questions about programming with Go.
How to contribute changes to the Go project.
Features and ideas being developed or discussed by the Go team.
A summarization of the changes between tagged releases of Go.
A presentation delivered by Rob Pike and Russ Cox at Google I/O 2010. It illustrates how programming in Go differs from other languages through a set of examples demonstrating features particular to Go. These include concurrency, embedded types, methods on any type, and program construction using interfaces.
An hour-long talk delivered by Rob Pike at Google in October 2009. The language's first public introduction. (See the slides in PDF format.) The language has changed since it was made, but it's still a good introduction.
A YouTube channel that includes screencasts and other Go-related videos:
A tour, with some background, of the major features of Go, intended for an audience new to the language. The talk was presented at OSCON 2010. See the presentation slides.
Rob Pike's Emerging Languages Conference presentation delivered in July 2010. See the presentation slides. Abstract:
Go’s approach to concurrency differs from that of many languages, even those (such as Erlang) that make concurrency central, yet it has deep roots. The path from Hoare’s 1978 paper to Go provides insight into how and why Go works as it does.
A short promotional video featuring Russ Cox demonstrating Go's fast compiler.
A demonstration of the practical use of goroutines and channels.
A self-describing Codewalk.
Articles about Go from external blogs.
Posts labelled 'Go' by Russ Cox, one of the core Go developers.
Posts labelled 'Programming' by Ian Lance Taylor, one of the core Go developers.