As of Tuesday afternoon, one of the main storage machines at the Media Lab had a major hard drive failure, and everything had to be restored from tape. Unfortunately, one of the major parts of Blogdex runs from this hard drive, and can't be restored until it's back up (I put it on that drive for safe keeping. ugh.)
The good news is that it should be running again tonight if my sysadmins give me the right information. I'll post again to let you know that it's up and running. Thanks for understanding.