I don't think it completely solves it, but it would be useful to be able to apply styling to a specific part of the page ie: highlight something so when you send it, it saves the receiver a little time searching for it.

Or in a similar vein, wouldn't it be cool to make any header an anchor? So I could say,

http://example.com/article.html#second_header

or whatever. Not the same concept, but it would be useful.