Although Reinvented beat me to it, I’ve now installed Refer.
The best part about it? An RSS feed of my refers that is not mentioned on the help page. Now I don’t have to do the classic maniacal refreshing of the refer page - it all comes to me.
Sadly the RSS feed was not up to spec, and choked in NetNewsWire. The RSS .92/2.0 specs state ”the description contains the text (entity-encoded HTML is allowed)”. The refer RSS feed was not escaping the HTML. A quick addition of htmlspecialchars() fixed this.
display.php Line 132: tag( htmlspecialchars( tag(tag('Where: ','em').$page,'p'). tag(tag('From: ','em').$refer,'p'). tag(tag('Who: ','em').$host,'p') ), 'description'),'';
I also created a robots.txt file to keep Google from seeing the refer info. No sense in letting slimy refer spammers get Google Juice.