目前较为流行的Ajax框架

EXT - http://www.extjs.com/(中文：http://www.ajaxjs.com/)

Microsoft Ajax - http://ajax.asp.net

Java BluePrints - https://blueprints.dev.java.net/

Protptype - http://www.prototypejs.org/

Scriptaculus - http://script.aculo.us/

Laszlo - http://www.openlaszlo.org/

GWT - http://code.google.com/webtoolkit/

AJAX.net - http://www.ajaxpro.info/

Yahoo - http://developer.yahoo.com/yui/

Active Widgets - http://www.activewidgets.com/

Tibco General Interface - http://developer.tibco.com/

Visual Web GUI - http://www.visualwebgui.com/

Dojo - http://dojotoolkit.org/

Backbase - http://www.backbase.com/

SmartClient - http://www.smartclient.com/

Nitobi - http://www.nitobi.com/

JackBe - http://www.jackbe.com

Zimbra - http://www.zimbra.com/

Rico - http://www.openrico.org/

Spry - http://labs.adobe.com/technologies/spry/

Aflax - http://www.aflax.org/

DWR - http://getahead.org/dwr

Moo.fx - http://moofx.mad4milk.net/

Mochikit - http://www.mochikit.com/

Xajax - http://www.xajaxproject.org/

Nexaweb - http://www.nexaweb.com

Behaviour - http://www.bennolan.com/behaviour/

AJForm - http://projects.aphexcreations.net/ajform/

Qooxdoo - http://qooxdoo.org/

Bindows - http://www.bindows.net/

Tibet - http://www.technicalpursuit.com/ajax_indepth.htm

Crossvision - http://www.softwareag.com/Corporate/products/cv/appldes/default.asp

Echo2 - http://www.nextapp.com/platform/echo2/echo/

Ajax Tags - http://ajaxtags.sourceforge.net/ (JSP based)

WebWork - http://www.opensymphony.com/webwork/

Tacos - http://tacos.sourceforge.net/ (for Tapestry)

Sajax - http://www.modernmethod.com/sajax/

AjaxAC - http://ajax.zervaas.com.au/

JSPan - http://sourceforge.net/projects/jpspan

HTML_AJAX - http://pear.php.net/package/HTML_AJAX/ (PHP)

Aspects - http://ajaxaspects.blogspot.com/

WebORB - http://www.themidnightcoders.com/weborb/

TurboGears - http://www.turbogears.org/
MagicAjax - http://www.magicajax.net/