Is the site being scanned?
Not really sure if that's the right way to phrase it. I'm just looking at the numbers on my blog entries. I went from the 2-300 views range to 5-600 range in what feels like a couple of weeks. Now I'd like to believe that I'm that popular of a blogger, but sadly I'm a little too realistic to swallow that. Don't know if you maintain detail on unique visits, but I'd be interested to know what's going on.
Coffee is your friend. Everyone else is an acquaintance.