Tips on combining image and text links that link to the same resource, a requirement stated in the Web Content Accessibility guidelines.
All posts for "alt text" tag
Developer tools to help check web accessibility
Three tips for using the web developer toolbar to help check for accessibility issues on your website.
How to write good Alt text
The first rule of web accessibility, at least if the Web Content Accessibility Guidelines (WCAG 1.0) are to be believed, is to provide an alternative text description for all non-text elements (that's images, graphical links, bullets and buttons to you and I). At first glance this should be an easy thing to do. After all, how difficult can it be to describe an image in a few short words? Actually, there's more to describing an image than meets the eye.