Page 1 http://en.wikipedia.org/wiki/Phosphor_burn-inPage 2 http://www.slidecoaching.com/it/2009/06/slide-zapping/ http://www.slidecoaching.com/it/2009/06/slide-zapping/Page 3 11. http://www.techsmith.com/jing.html http://www.techsmith.com/jing.htmlPage 4 12. Alessandra Cimatti http://www.slidecoaching.com/it/2010/12/chiavetta-usb-senza-problemi-presentazioni/ http://www.slidecoaching.com/ mailto:info@slidecoaching.com http://twitter.com/slidecoach