Referrer Tweaks

I spent 30 or so minutes playing with the referrer code and data. I've
changed some of the URL's to site names and have added the various
search engines to the "skip" list.

So as to not anger Hormel, I
won't refer to two sites as "spammers". Instead, just feel free to not
click on "ADV" in the referrers list.

The ADV's and the search engines
should disappear from the list shortly as the database updates.