My proposal would be to add an attribute to the <a> tag that would allow you to turn off referrer sending as needed per link. Something such as <a href="" noreferrer>link text</a> would work. Of course, this would impact the object model slightly too.
Already there: http://www.whatwg.org/html#link-type-noreferrer
-- Anne van Kesteren http://annevankesteren.nl/
