Once in a great while something comes along on the internet that's so unbelievably simple and yet works so well. Twitter is one of them. On the video conferencing side, now we have MeBeam. MeBeam, which requires no software or drivers to be installed, is a web application that will permit you and up to 15 of your closest friends to hold a video/audio conference (provided you and said friends all have webcams or, at the very least, microphones). For further details consult this simple how-to!