Oneeko is one of the most intuitive screen sharing platform I've found! - Thanks to Jane Hart <http://janeknight.typepad.com/pick/>

• A Two click approach to screen sharing.
• No download for the guest(s), as Oneeko runs in Flash 9+
• Share your screen with up to 8 guests at one time (Free version only 1-to-1)
• Fully integrated with Skype
• A unique sharing area, allowing you to control what you share
• Full web cam support (host and guest(s))
• A Unique "See-What-They-See" feature 

And so much more. Did I mention the whiteboard?

For a Free download, and get free trial of Pro version for 15 days, go to http://www.oneeko.com/index.html.