GitHub on their switch from nginx->haproxy->mongrel to nginx->unicorn stack, and why the Unicorn model rocks.

Graph and chart plugin for Raphaël, by Dmitry Baranovskiy.

Nice console IRC client - BitchX hasn’t seen development for half a decade, this seems to be what the cool kids have switched to.

Ryan Tomayko on Unicorn, a fast pure-Ruby preforking HTTP server with extensive use of Ruby’s Unix system call wrappers; fork, accept, select etc..

Additions to the Google Docs Data APIs: POST an image and get OCR, post a document and get it translated.

Simple package management system for Mac OS X 10.5+ written in Ruby.

Apple has open sourced their Grand Central Dispatch technology as libdispatch under the Apache Licence 2.0. Requires LLVM compiler to support blocks in C.

Proper use of the HTML5 section element, with comparisons to the article, aside and nav elements.

Mark Pilgrims work-in-progress book on HTML5, free online under a CC licence, set to be published by O’Reilly upon completion.

Visual tri-colour password hash to catch tpyos etc, embedded into web password input fields. Implemented using jQuery, would be great as a Greasemonkey userscript or browser extension.