There's a new WebEx competitor hitting the market: CallWave's Fuze. Its advantages: No download required on either the viewing or the presenting side. It works with video and allows markup of video frames. And it has some nice call-handling features.
I used the tool briefly and although I found some bugs and performance issues in this early version, I like the design and found it simple to use. You can upload documents to share (images, text files, PowerPoint presentations, even videos), and once you're sharing them, use simple drawing tools to mark them up and illustrate points. … Read more