@shikha, lol... good job.:D
It's funny how they're related.. :D
 Chatting can be used to obtain knowledge and share experiences/advices other than 'ILU ILU' stuffs as well :D 
Someone said it's modern age medium of telepathy :D , we don't talk, we don't hear anything, we just get what others are feeling through 'words;
not talking about video/audio communication anyway :D 

@goodass, thanks :D