Bibliografia

http://www.slideshare.net/martinez.evelyn97
http://jenygonzalezc.wordpress.com/2007/12/01/slideshare-anadir-un-powerpoint-al-blog/
http://www.alegsa.com.ar/Dic/disco%20virtual.php
http://maestroweb.ticoblogger.com/2006/10/definicin-de-blog.html
http://definicion.de/correo-electronico/
http://www.coepa.info/intro_internet/definicion_de_internet/index.php