The AJAX Libraries API takes the pain out of developing mashups in JavaScript while using a collection of libraries. We take the pain out of hosting the libraries, correctly setting cache headers, staying up to date with the most recent bug fixes, etc.

By implementing emerging web standards, Gears is influencing what the web of tomorrow will look and act like. And since Gears is an open source project, anyone can contribute.

jQuery UI is a set of themable widgets and interactions, built on top of the jQuery JavaScript Library, that you can use to build highly interactive web applications.

Ajax file directory replacement for your host.

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Ajax explained in simple terms and how it is changing web development

a look at the implications for accessibility and usability when using Javascript to dynamically update a web page