Site loading perpetually

I don’t know if this is really WP related or not, but my site suddenly has gotten to a state where none of the pages ever finish loading. All the content is there, but the little spinny icon on Firefox indicates that it’s still trying to get more (IE does the same). Aside from the constant “transferring data” thing, the only other problem is that the feeds are sometimes missing, or at least Firefox says it can’t find any when I hover over the the little orange feed icon.

Any ideas? Is there a way to tell what te browsers think they are trying to load?