RE: examples of sites with good accessibility

amazon.com/access is an example of a site that is frequently presented as an
accessible alternative, but in reality is  not equal.  Not all products and
features are available on that version of Amazon.  I am sure it is primarily
meant to be used by mobile devices, but it still underscores a potential
issue with regard to separate and not equal presentations.
 
This is just my vote against that particular sort of solution.  I do not
know if Amazon promotes that version of itself as the answer to
accessibility, but if it does so, it might be easier to understand why its
primary site is such a mess.  I use amazon.com/access a lot but would prefer
the regular site be more accessible.  It may not be a good example of how to
integrate accessibility into all content unless your primary audience is the
mobile market.  
 
The only instructive lesson to be learned from amazon.com/access is a lesson
on creating numbered lists.  It's great where applicable.