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Using the referrer URL to detect what brought users to your site can let you help them find what they're looking for. The almost magical asynchronicity of Ajax lets you provide additional content for users from search engines. It requires only minor changes to your site and doesn't affect the experience for others.

Poor IE. Like the late comedian Rodney Dangerfield, it seems to have a hard time getting much respect these days. Within Microsoft it has long been the unwanted stepchild - ignored when Microsoft shifted gears towards server-side technologies in...

Head First Ajax gives you an up-to-date perspective that lets you see exactly what you can do -- and has been done -- with Ajax. Using the unique and highly effective visual format that makes Head First titles popular, this book offers a big picture overview to introduce Ajax, and then explores the use of individual Ajax components -- including the JavaScript event model, DOM, XML, JSON, and more -- as it progresses. Learn more.

Ubiquity, the open source add-on currently in alpha and being produced by the Mozilla team for Firefox, is intended to make such a command line possible. The idea behind ubiquity is to take advantage of both the internal storage capability and online communications in order to let users both create local "scripts" written in JavaScript that can be invoked to perform certain actions and to create a centralized (and vetted) library of such scripts online that people can load to accomplish nearly any task.