About DimDim: "Dimdim is a very simple to use browser-based web conferencing service. You can show presentations, collaborate via whiteboards, chat, talk and Dimdim, the iPod of Web Conferencing broadcast via webcam with absolutely no download required to host, attend or even record meetings. ...And because we really do want to make the world a better place, we also provide Dimdim Free for 20 participants to meet an unlimited number of times."
