If you do (or are planning to do) webinars then check out Glance. Once you have downloaded the software to your computer you can allow up to a 100 people to connect to your computer so that you can demomstrate for example, setting up an account on Facebook, installing a Wordpress theme and so on. Free phone conferencing is available with every account. You can see and control participants' screens.
To enable people to join your webinar either provide them with a code which enables them to access your Glance web page or they can connect directly from your web site. Guests can also join sessions via a web page that Glance hosts, but which looks like your own web site. For this there is a one time set-up fee but... when their session ends, they'll see another page that you can customize with a Call to Action and links to your web site or landing pages. Awesome for when you have an e book or teleseries that you want to encourage people to purchase.
If you want guests to see you then just power up your webcam, put it in "preview" mode so you can see yourself and your guests will be able to see you too. You can always hide the window from time to time if you want to.
You can record the session using Camtasia for example. This captures what's on your screen along with your voice. After your session is over, use Camtasia to edit the content and publish it on your website, You Tube or use as a bonus when you sell one fo your information products or systems.
Glance claim that in tests, Glace starts nearly three times faster than GoToMeeting® and WebEx®. They currently have a free trial which I am going to use to show a personal friend of mine how to make good use of Facebook. If any of you want to sit in on that one hour session let me know and I will send you the time and date and connection details. Just leave a comment on the this blog post.
Glance have done a cute video cartoon to demonstrate it: