‘Bookmark Me’ is a sort of IE thing and doesn’t usually work in FireFox, Safari, Chrome, etc.. so as a FireFox user I’ve never bothered with a bookmark links before.
FireFox users know that Ctrl+D is the shortcut for these browsers, and that most ‘Bookmark Me’ links just aren’t work clicking – as they won’t work.

And then I found this…

function bookmarkIt(){
if(document.all){
   window.external.AddFavorite(location.href,document.title);
   }
else if(window.sidebar){
   window.sidebar.addPanel(document.title,location.href,'');
   }
}

…although I haven’t actually used it yet.