SKIPE, 2003.
FACEBOOK, 2004.
TWITTER, 2006.
WHATSAPP, 2009.
https://www.google.com.co/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwjYqfre8_PVAhVE4iYKHQ8-CWwQjRwIBw&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FFacebook&psig=AFQjCNELFRc4Ka_fakmTj6NQCt9ylIZD3A&ust=1503802696338283
https://www.google.com.co/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwj5iu378_PVAhUD4yYKHT3yCw8QjRwIBw&url=http%3A%2F%2Fwww.dotpod.com.ar%2Fla-evolucion-del-logo-de-twitter%2F&psig=AFQjCNFYpXyoP2lnxqN0FFf48EEJZ5LThQ&ust=1503802755423295
https://www.google.com.co/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&ved=0ahUKEwiKt8mX9PPVAhVQySYKHZc4AFAQjRwIBw&url=https%3A%2F%2Ficons8.com%2Ficon%2F16721%2Fwhatsapp&psig=AFQjCNFasLOq8HR0V9bYmz6tgBIfibWMDw&ust=1503802805857065