1- http://www.cnnexpansion.com/videos/2013/08/16/google-abre-sus-puertas-a-los-universitarios
3- http://www.ticbeat.com/sim/consejos-para-proteger-tu-dispositivo-android/
5- http://www.cioal.com/2013/08/02/nube-020813/
6- http://www.puromarketing.com/10/16574/para-convertirte-estrella-youtube.html