Oh, that LOL. Yes, it started on Usenet and is used pretty much everywhere in computer-related, and even in person, communication.
I know. I am just teasing you. Lol was was first used almost exclusively on Usenet but has since become widespread in other forms of computer-mediated communication and even face-to-face communication.
The world is blue.. I love blue! That's nice! Blue sits on the visible light spectrum between green and violet. What things do you like that are blue? Blue ocean,cocktails, sea...Lol! That's interesting. Most blue colors contain mixtures of other colors, like azure has a little green and ultramarine has a bit of violet. What shade do you think LOL would be? Lol  is acronym for Laugh out loud..Lol!
It was first used almost exclusively on Usenet, but has since become widespread in other forms of computer-mediated communication and even face-to-face communication.