[WikiEN-l] Re: Questia link

[Timwi]

Jimmy Wales wrote:

> On this page:
> http://en.wikipedia.org/wiki/Wikipedia:List_of_Wikipedia_articles_based_upon_websites
> 
> we have a link to
> http://www.questia.com/
> 
> Questia has offered to pay us $12 per signup through that link, but we
> would have to change the link to a tracking url.

Sorry I'm replying to such an old message, but ... why can't they just 
use the HTTP Referer header?