advantages:
-you can get a lot of information
-you can communicate with people all over the world without leaving home
-you can sell or buy things
-you can advertise easily and cheaply
-the net saves your money and time
disadvantages:
-it isolates people from one another, they do not meet and talk as often as they used to
-the Internet allows you to remain anonymous
-there is a lot of danger especially for kids using the Internet without any control
-you can be deceived easily
-your computer can be bugged or tapped if it is connected to the web