Description
AJAX is a set of methods for developing interactive applications on the web using XMLHttpRequest and Javascript to provide data to the user without reloading a web page. This idea has been brewing for quite some time but only recently have these ideas been brought together and are starting to be formalized.
Offline as of 2007-01-27 (but still linked to as "wiki" from the root of the site, so perhaps it's unintentional/temporary?).