They probably typed the domain in incorrectly, and someone owns the incorrect version, which redirects to Narutotalk.org.
thanks for the replies...I do have hacks installed, but I've searched through the datase, templates, phrases and files and I can't find any reference to the Naruto site. I don't allow html, so that can't be the issue.
It's happening when the page refreshes, then there's a automatic redirect. Apparently for an hour last night and users weren't able to get on my site at all. Weird...