1.      Facebook

Facebook is one of popular social networking sites besides friendster and twitter. Facebook can be used to share information with other friends whether in real time or not. Facebook can also be used for sharing from simple information to scientific discussion. Similar to chatting, facebook users have to follow the ethics in communication.

         

With Facebook you can write anything (positive) on your wall (status), send messages to your friend’s wall (birthday note or other messages), comment on your friend’s status, chat, etc.