AJAX links

http://www.peej.co.uk/articles/rich-user-experience.html

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

http://www.xulplanet.com/references/objref/XMLHttpRequest.html

http://del.icio.us/tag/xmlhttprequest

http://www.xml.com/pub/a/2005/02/09/xml-http-request.html

http://www.adaptivepath.com/publications/essays/archives/000385.php

http://jpspan.sourceforge.net/wiki/doku.php?id=javascript:xmlhttprequest