1. Increase Market Share and Audience Reach Improve usability for non-disabled and disabled visitors; Support for Low Literacy Levels; Improve Search Engine listings and Resource Discovery; Support for Semantic Web; Re-purpose content for multiple formats or devices; Increase support for Internationalization; Assisting access for low-bandwidth users.

2. Improve Efficiency Reduce site maintenance; Site Search Engine Improvements; Re-purposing Content; Address server-load; Address server-bandwidth.

3. Demonstrate Social Responsibility

4. Reduce Legal Liability

Here you can read whole draft: http://www.w3.org/WAI/bcase/benefits.html

Accessibility is critical for a web site's success

This narrow focus is at expense of a much larger segment of society with milder impairments, such as partial sight, poor hearing, and poor language skills. The needs of this larger group can be more easily accommodated with simple and inexpensive design tips such as resizable text, large tactile buttons, and clear, easy-to-follow instructions.

We should try to look at things from point of view of people who have disabilities. For example, in UK alone, there are 8.5 million people who are classified as having some sort of disability. That's a big percentage to exclude from web; from a moral viewpoint, it is surely wrong, but from a commercial viewpoint, it is disastrous.

When designing web pages, try putting them through a text reader, like ones used by those with visual impairment. You will soon realize how difficult it can be for a user who cannot see that a new window has opened - hence need to overtly tell users that a new window has indeed opened.

Apart from moral and commercial considerations, there is also legal. The United Kingdom enforces Disability Discrimination, which requires all web sites to show that they have taken steps to enable access.

With a little bit of thought, accessibility is relatively easy to implement. It does not require you to do away with JavaScript, Flash or other Multimedia features, just as long as you provide an alternative, so your visitors have a choice.

Epilogue

"For people without disabilities, technology makes things convenient," says Judith Heumann, U.S. Department of Education's Assistant Secretary of Office of Special Education and Rehabilitative Services, "For people with disabilities, it makes things possible." Just keep that in mind.-

Now, you can copy your pages to your chosen server. You need not memorize all tags and format but you must know about HTML. Though, there are hundreds of WYSIWYG or What You See Is What You Get editors out there, nonetheless, you can create a better site with just your basic knowledge on HTML. Proofread and meticulously examine your site. Is navigation satisfactory? Is content fulfilling in your own point of view? How about in point of view of visitors? How about graphics? If it is not satisfying, you can redo pages. If you are fulfilled with overall appearance and function of your site, then you are ready for next step - to upload it to your host and promote your site.

After aforementioned steps, you are now ready to accept visitors. However, it doesn’t stop here for web site is a cycle. It’s not enough to be visited by visitors you must keep them from coming back. To do this, update your site more often to be acquainted with recent events at same time to make it more useful so as to cater to everybody’s needs.