Ugh. I've been using SiteMeter's basic service for three years, and it's been pretty good. This weekend SiteMeter migrated all accounts to a new system and they've really diluted the basic (free) service to the point that it's of almost no value at all. I can no longer see a list of referring URLs since that appears to be a "premium" service.
I've had this blog linked to Google Analytics for a while now, so I think I'm going to drop the SiteMeter code and stick with GA.