Having recently used this blog as an openid for posting livejournal comments, and for setting up loudtwitter, I was interested to see if it would work at ma.gnolia. Unfortunately ma.gnolia doesn't like the URL jeff_robertson.blogspot.com. I can guess it's the underscore in "jeff_robertson" that is causing the problem. My evidence for this is that I have another blogspot URL that works fine, and the difference is no underscore.

Now I need to figure out, is this a bug in ma.gnolia or some library it uses to do the openid stuff, or is the problem that you really aren't supposed to use underscores?