Yahoo! Releases UI and Design Pattern Libraries

The Yahoo! Developer Network has just released the Yahoo! User Interface Library, complete with a set of JavaScript utilities and controls for rich web applications, and the Yahoo! Design Pattern Library, which illustrates optimal solutions to common web development problems. These are invaluable resources for web developers, and Yahoo!, who in my opinion has impeccable Web 2.0 design standards, is proving to be a driving force in the web development community.