When giving a Webinar to the entire Internet, imagine the audience naked
By Hinkmond-Oracle on Feb 22, 2010
That's how you keep from getting nervous. But, then there's an issue of keeping your mind on the presentation (and, many times for a tech Webinar, a gender ratio problem... not that there's anything wrong with that, if that's how you roll).
The cool part of Parleys presentations is that you can click on the upper right corner of the window (where the slides are) and flip the main window to view the slides instead of the speaker (sometimes a good thing ;-) ) and then click again to go back again.
That's neat. I wish I could do that with Fox News broadcasts when I don't want to watch the anchorman. :-)