Imatges lliures en xarxa
http://bancoimagenes.cnice.mec.es/
http://search.creativecommons.org/
http://flickrcc.bluemountains.net/index.php
http://www.pixalia.net/
http://www.designpacks.com/Image_Catalog/
http://everystockphoto.com/
http://juglar103.blogsome.com/2006/05/29/imagenes-libres/