This is the alternative that that can be assigned to a web graphic. This tag is suppose to describe the content of the image and mainly implement as a usability feature by the . Software for the visually impaired can read aloud the contents of the alt tag thus 'giving the person an understanding of the visual message being sent. This tag can be a nice seo bonus tag, by using clear and descriptive alt tags the search engine can find the images. Think about the next scenario: A user is looking for snowball images at google.com and finds on from your website. Google will then display the image in the context of your page. And if your page has more images about snowballs and some very interesting information this user might decide to give your site a try. Be careful with the alt tag though. This tag is not meant as a keyword spamming agent and search engines will penalize any alt tag spamming attempts. See this tag merely as what it is, a helpful tool for the visually impaired, and this category includes the search engines Google, yahoo, msn!