RE: Copywriting for Screenreaders (was Alt text for URL's)

One possible solution would be for the user agent to provide a list of 
headings by level - a kind of collapsed view.  But the 'by level' part is 
important.  We would quickly see that the page started with a level 2 or 3 
heading followed by a level one.  Visually this would be simple to render 
with indentation.  How you would prefer to explore this list is a user 
agent design issue.  The only requirement for page authors is to markup 
headings and provide quick navigation jumps like "skip to main content" - 
the rest is the user's job to learn and the user agent (browser + A.T.) to 
render it in various ways, such as collapsed views (PowerPoint has a good 
example of this), navigate quickly from heading to heading (Jaws and HPR 
both has the "h" key), read it through sequentially, etc.  This applies to 
magnifier users, screen reader users, and sighted users using only the 
keyboard to navigate.

Regards,
Phill