http://net.tutsplus.com/tutorials/javascript-ajax/how-to-create-a-simple-web-based-chat-application/

http://www.script-tutorials.com/how-to-easily-make-a-php-chat-application/

http://css-tricks.com/chat2/

http://tutorialzine.com/2010/10/ajax-web-chat-php-mysql/

super --- http://blog-du-grouik.tinad.fr/post/2011/08/21/Creer-un-tchat-en-ajax-Gnieark-version

http://www.dreamincode.net/forums/topic/44808-simple-text-chat-box/

http://www.ibm.com/developerworks/library/x-ajaxxml8/?ca=dgr-lnxw06-AjaxChat

super  --- http://code.jenseng.com/jenChat/

uniquement un fichier --- http://www.ajaxprojects.com/ajax/tutorialdetails.php?itemid=452

bien --- http://www.script-tutorials.com/how-to-easily-make-ajax-style-php-chat-application/

http://www.techbirdy.com/2010/05/24/10-free-php-chat-scripts/

http://www.tutorialized.com/

http://frug.github.io/AJAX-Chat/

http://roshanbh.com.np/2008/09/free-ajax-chat-applications-php.html

super - http://www.sterryit.com/chatr/

http://myslimchatroom.wikidot.com/

http://www.siteduzero.com/informatique/tutoriels/un-chat-en-php-ajax

http://kvz.io/blog/2009/01/09/create-daemons-in-php/

http://forum.codecall.net/topic/58937-simple-chat-system-using-php-mysql-and-ajax/

http://www.ajaxprojects.com/ajax/tutorialdetails.php?itemid=229

super ---http://www.ajaxprojects.com/ajax/tutorialdetails.php?itemid=9

bien --- http://scripts.toocharger.com/fiches/scripts/minichat/5126.htm