Recently I came across a screen sharing program called Glance. I'm impressed with it so far. It enables to share what you see on your screen with others. What I really like about is it's ease of use. I downloaded it and I was up and running in less than 10 minutes.
To use this all you do is open the software and you inform whoever you wish to share your screen of the 4-digit code that is generated. They then open a browser(will work with most popular browsers). They go to your unique web address and punch in there code and connect to you. You can share with up to a hundred computers.
Though I see this as more of a business application it does have it's home uses too. You can share presentations, conduct meetings over the phone, share your work and edit in process. The host may use any version of Windows from Windows 98 to Vista and MAC OS 10.3.9 or above. Your guests may use a Windows,MAC or Linux machine using Internet Explorer, Firefox, Safari and Opera browsers.
For a free trial you can go to the Glance website. This may not be for the casual user as it isn't a free program though they do offer a single day use rate which is fairly reasonable. I think this would be ideal for a business with a need to share information like this. Like I said it's very simple to use which I like and has a small learning curve. I like it very much and it may be worth a try for you.