If an image is worth a thousand words, what are a thousand images worth? What they’re not worth is your time waiting for them to load on a Web page. While the Web is primarily a visual medium, the more image-heavy a Web page becomes, the longer it takes to load before you can see its entire contents. Even pages with just a few images can take a seemingly inordinate amount of time to load if the images aren’t properly optimized for Web viewing. Everyone from professional Web page designers to casual bloggers