https://blueimp.net/ajax/ -> AJAX Open Source Web Chat

"AJAX Chat is a free and fully customizable open source web chat software implemented in JavaScript, PHP and MySQL. Sound support is implemented using Flash, Socket support using Flash on client-side and Ruby on server-side.

AJAX Chat integrates nicely with phpBB, MyBB, PunBB, SMF, vBulletin and other PHP community software."

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