SHARING INFORMATION

Social networks are virtual environments for communication, interaction and the sharing of sources.

HORIZONTAL SOCIAL NETWORKS.

FACEBOOK: This is a bidirectional social network. Peoplecan publish private and public messages with text, links, news, photos, and videos.

TWITTER: This social network has some unusual features. Users publish short test messages(tweets)with no more than 140 characters.

GOOGLE+: this social network allows users to create circles of friends in order to share information