DimDim has long been recognized as one of the best open source online presentation and collaboration applications, and Bob Walsh, on our sister site WebWorkerDaily.com, has a scoop on the new version that will launch next week.
DimDim is a free web-hosted application that allows whiteboarding, PowerPoint or PDF presentations, and much more. The new version has been in beta since the Demo conference last year, and Bob got a good demonstration of the new version from Steve Chazin, Chief Marketing Officer. It has very streamlined cross-platform collaboration features, and more. Check it out.