Online Virtual Worlds: A Mini-Guide

"A virtual world is a computer-based simulated environment intended for its users to inhabit and interact via avatars. This habitation usually is represented in the form of two or three-dimensional graphical representations of humanoids (or other graphical or text-based avatars)." (Source: Wikipedia) A conference held in a virtual world The expression "virtual world" usually brings up to our mind the idea of a 3D environment that typically appears similar to the real world...