Looks like a good example of how to do it.

"The most important piece of UX for a developer product isn't the homepage or the sign up process or the SDK download. It's the API documentation!"

"Parses your readme's markdown into a clean and simple documentation website. Made especially for your gh-pages branch, all you need is a single index.html file that includes the DocumentUp script."

"An open service allowing people to collaboratively translate software, documentation and other types of projects."

"A program for converting between various markup formats. Input formats include markdown, reStructuredText, HTML, and LaTeX; output formats include HTML, LaTeX, ConTeXt, S5, DocBook, groff man, reStructuredText, markdown, and RTF."

"The Python Module of the Week series, or PyMOTW, is a tour of the Python standard library through short examples." Nice.

"An in-depth exploration of the art of shell scripting"

"I propose a simple set of rules and requirements that dictate how version numbers are assigned and incremented. For this system to work, you first need to declare a public API [...] Once you identify your public API, you communicate changes to it with specific increments to your version number. Consider a version format of X.Y.Z (Major.Minor.Patch). Bug fixes not affecting the API increment the patch version, backwards compatible API additions/changes increment the minor version, and backwards incompatible API changes increment the major version."

"Zend Framework Coding Standard for PHP"

"Here you can find the full content of the book, a blog with tips and updates about Git and the book and open source projects related to Git or referenced in the book."

"This short tutorial shall attempt to explain the git system to people
who have no, or minimal experience on SCMs and version control tools."

"Your one-stop shop for information, gossip and discussion with the Flickr developer community"

"I know that this is all a waste of time if there's no follow-through from management. But assuming that the required support is there, how do you guys do process documentation?"

"A reference for developers interested in the Facebook Platform."

"Maven is a framework for managing various aspects of a project, providing its own conventions and tools to meet this end and acting as glue for making existing disparate tools work in a tractable and orderly manner."

"Intended to help you create your own interactive maps using the Google API."

"One-Sheeters are quick and easy marketing tools for information architects. They're like mini brochures to advertise IA deliverables and promote the IA practice in your company."

Don't particularly like the methods but always interesting to see what other people do...

"I’ve done my best to migrate away from traditional documentation methods and find ways that actual help others visualize what the end product should look like."

Cody's jQuery examples