your computer's microphone
I just registered and in my confirmation email it said this:
George, it sounds to me like you can do it all through your computer. What do you think? Maybe you can join us after all!
I'll have to wait for the archive version since I have phone or I have net but don't have both at the same time. So if anything really cool happens you all need to make sure to post! (big soulful doggie eyes begging (grins))
You will be connected to audio using your computers microphone and speakers (VoIP). A headset is recommended. Or, you may select Use Telephone after joining the Webinar.