overLIB 4.21, Copyright Erik Bosrup 1998-2004.
http://www.bosrup.com/web/overlib/

Prototype (Ajax), http://www.prototypejs.org
© 2006-2007 Prototype Core Team
Licenses: MIT (source code) and CC BY-SA (documentation).

SwfObject http://code.google.com/p/swfobject
Licence GPL

JW player, http://www.jeroenwijering.com
Licence http://creativecommons.org/licenses/by-nc-sa/2.5/

Audio Player http://www.1pixelout.net/code/audio-player-wordpress-plugin
Licence http://creativecommons.org/licenses/by/2.0/

Mp3 player, Copyright (c) 2005, Fabricio Zuardi
http://musicplayer.sourceforge.net

Emff http://emff.sourceforge.net
Licence opensource

Some Scripts from http://www.dynamicdrive.com/

En option:

Tiny mce
http://sourceforge.net/projects/tinymce/
GNU Library or Lesser General Public License (LGPL)