You may not be familiar with the cornucopia of free informational programs offered by several of the big name web conferencing software vendors. They like to show off their software in use, and it's an excellent way for you to see how it works from the audience's perspective. They often invite guest speakers to talk about business issues, marketing, and effective use of webinar technology. Here are just a few of the many offerings that you might want to check out:
I also like Office Depot's Web Cafe, which offers webinars targeted at the small business community.
Check out what the various sites have coming up. You may find a subject that can improve your business!