Browsershots Tests Your Site Design in Many Browsers

This is a very useful tool to make sure your website is accessible across the array of browsers available past and present.
"Browsershots makes screenshots of your web design in different browsers. It is a free open-source online service created by Johann C. Rocholl. When you submit your web address, it will be added to the job queue. A number of distributed computers will open your website in their browser. Then they will make screenshots and upload them to the central server."