Referrer Mod
A mod that logs everyone who has followed a link to your site
A mod that will track where someone has come from to get to your site.It lets you download the stats to your computer in text or excel format.
It's not a replacement to your web hosts stats, just a quick and easy method that concentrates on your forum. The nice thing is that it will display the forum/topic name that someone has linked to if it can find a match in the database.