http://yin.arts.uci.edu/~players/demotic/index.html
http://www.lafura.com/entrada/index2.htm.
http://lafura.upc.es/wip/Principal.htm
http://www.tornadotheatre.com
http://www.tele-actor.net/introduction.html
http://www.marlenacorcoran.com/bioeng.htm
http://service.real.com/help/library/guides/production/realpgd.htm
http://www.kennedy-center.org/multimedia/storytimeonline/brothers.html
http://www.cs.cf.ac.uk/Dave/Multimedia/node90.html
http://smw.internet.com/smil/tutor/tips
http://www.smilsoftware.com/docs/SMILwithRichMedia.pdf