My company is about to do a webinar via Spreecast. The folks there are very helpful but there are some problematic UI issues and feature limitations. I just had someone recommend Livestream to me. And then Ustream.
We are doing webinars that could have anywhere from 100 to 700 participants. Pretty basic stuff - 1 to 3 people who'd be on screen at once. A broad audience, not always technically savvy.
Any help appreciated!