What about animation and Flash™?

We like to use animation sparingly on websites. A good use of it is to call attention to certain products. Images that change slowly do not interfere with people's ability to concentrate on the site and can add a lot of interest to a page. We usually prefer to accomplish this with script for several reasons, one of which is that if someone doesn't like to see animation on the pages they browse, they can simply turn it off in their browser options.

Flash™ is great for special features in some circumstances. But there are still file size and compatibility issues with it. For the vast majority of sites, it is becoming less and less relevant as browser capabilities have evolved to become capable of delivering interactive content without it.