With the popularity of iPads and tablets, it is important to take a moment and view your website the way an iPad would see it. I’ve found this free online tool that allows you to do just that; see your site like an iPad sees it.
If you watch your Google Analytics statistics you will see that Google is now reporting iPad and tablets users in the statistics.
Of interest to me recently was that screen sizes were growing and now with the advent of iPads and tablets, they are shrinking again. A good size for a design is about 1100 pixels wide or so as this looks good on tablets and on most computer screens.