I DO!
And so do you, that’s if you own a site, or a blog or just like statistics like myself 🙂

A simple yet powerful idea that 99% of site owners and webmasters forgot about. I mean it’s the time of netbooks, Smart phones and mobile browsing.
Isn’t it important for you to know how people view your sites? Especially if you have a low bounce rate, you may want to visit the Google Browser Size project and see how many of your visitors see exactly what at a first glance at your page. Back in the days (and I assume until now) we used to call it what’s above the fold, that’s why you will see almost every blogger in the world have their “Subscribe to” links or “Email Signup” form on the first half of any page on their blog, this Google tool is powerful in a way that helps you re-design or re-arrange your pages to get maximum benefits from it.
Another service worth the mention in this post is BrowserShot, which is very similar to Google’s Service, but not to compare screens, instead, it compares different browsers, with different resolutions and across platforms (let’s face it, not every one uses windows) :-p