Thinkofit: Web Conferencing Review. An independent guide to software for web collaboration, web conferencing, & online communities. Maintained by David R. Woolley
"A Web Whiteboard is touch-friendly whiteboard app that lets you use your computer, tablet or smartphone to easily draw sketches, collaborate with others and share them with the world. Works on all modern browsers, no installation needed."
LIVE, INTERACTIVE BROADCASTING: Experience live video. In just minutes, you can broadcast and chat online with a global audience. Completely free, all it takes is a camera and Internet connection.