I'm surprised this article/slideshow only featured commercial/proprietary closed-source paid web conferencing products when there are quite a few free open source projects available for the same purpose. This is especially surprising since TechRepublic has featured these in the past (
http://www.techrepublic.com/forum/discussions/50-180774). Of course, these do require you to set up your own server to host the conference, but we're IT pros here, so that shouldn't be any problem.
I've set up two BigBlueButton (
http://bigbluebutton.org) servers, one physical and one virtual, and both worked great. I've also played with OpenMeetings (
http://incubator.apache.org/openmeetings/) and was quite impressed with its capabilities. Considering how tight most IT budgets are today, we are using more open source alternatives now instead of paid subscription services and saving a lot of money without sacrificing the essential features we need.