IBM AJAX Toolkit Framework Eclipse framework support for AJAX Toolkits Collaboration with Open Source
MircosoftAJAX.net(code-named Atlas) It will work across any Web browser that supports AJAX technologies But it is not compatible with others(AJAX-style)
OthersYahoo : give the user a feeling that they are no longer in a browser Oracle : Application Server 10g release 3, Support AJAX Google : trogdor, an ajax webpage editor