For those of you who think that all web sites should be hosted on the www sub-domain, but have been unceremoniously logged out of Typophile while doing so: the problem has been fixed. All you need to do is clear your cookies from typophile.com and www.typophile.com. The new session cookies will be from .typophile.com which will keep you logged in on any sub-domain of Typophile. In fact, you can look at Typophile on nearly any sub-domain you can think of, switching willy-nilly from one page to another.