Browser sizes: How many users can see how much of my site without scrolling?

If you are a technical computer type person, then chances are you use a large screen, maybe 19 inches or more. It can be easy to forget that a lot of users don’t need or use such a large amount of real estate, and that a website which looks great on a 23″ monitor, may lose a lot of its impact when viewed on a 12″ screen. And users don’t like to scroll, unless you have already grabbed their attention….