What is really the most popular screen resolution that you should be optimizing your website for? This is a very important question for most of the websites and especially for those that focus heavily on marketing and where the above-the-fold area is a huge factor for conversion. Back in 2006 the most common resolution was 1024×768, but is it still valid?

Here is the most recent video from Mike Cutts that discusses it:

And here is a screenshot from one of my Google Analytics profiles (an entertainment blog) that shows screen resolution stats for December 2009 (over 4 million visitors – should be enough to tell the story):

Looks like the winner is 1280×800!