Stephen Downes

It has been some time coming, but open-source web conferencing tool DimDim is now publicly available. It's still a beta, and some really desirable features - like desktop sharing and meeting recording - aren't available. But what it does - like Power Point slide show sharing (5 meg limit) and whiteboard, it seems to do well, albeit with a couple second latency. Considering the price of the competition, this free alternative is definitely worth a look.