Test Various Browser Window Size And Resolution

Google Browser Size (http://browsersize.googlelabs.com/) is a visualization of browser window sizes for people who visit Google. For example, the “90%” contour means that 90% of people visiting our blog (geckoandfly.com) have their browser window open to at least this size or larger.

This is a useful tool to measure visibility for your site, especially those with lots of advertisement that occupies the top part of the site. If your content only appears at the 40% and below threshold, you might want to reconsider your overall layout presentation to make it more visible.