By the way, now that I've read your entire blog entry, it's excellent and I totally agree with you.  It's just not appropriate to link here.  If it were, there would be a thousand such links in HRC's article.  

A more appropriate way to do this might be to add a paragraph to the article, and link to your blog as the source, something like:
Hillary faces two major obstacles to getting elected in 2008.  The last Northeasterner and the last Senator elected president was John F Kennedy in 1960.  Prior to that, the last senator elected president was Benjamin Harrison in 1888. 
Someone may still object to it, but it's much more subtle this way, and Wikipedia loves text with sources much more than external links.  
Also, remember to sign your responses on this page using four tildes, as shown above.