This is indeed a topic relevant to HTML5, but not in its scope to address.
When we developed Annodex (see
http://annodex.net/TR/draft-pfeiffer-temporal-fragments-03.txt), we
researched this topic intensively and discussed it within the URI
mailing list and here are the results in summary:
The
On Oct 30, 2007, at 6:01 PM, Ian Hickson wrote:
...
On Mon, 13 Jun 2005, Matthew Thomas wrote:
Or perhaps a ... rel=help for=phone-number, to be consistent
with the for= attribute in label.
This is a possibility, but is it really needed? In general it seems
we'd want to encourage authors