A screen name is used by Internet users in online chat rooms, in forum discussions, and also for the purpose of networking.
Screen names are also used to hide the true identity since many users don't want their real names to be disclosed.
You may also think of using a funny screen name which helps catch the attention easily.
There are many different sites on the World Wide Web that encourage their members to use interesting and cool screen names.
It is important that you choose your screen name carefully.