Apparently Library Vixen ran afoul of Blogger somehow. Most of you noticed several days ago that her Blogspot site wasn't letting us in anymore. Today I heard from her via email, advising that her Blogspot site has been shut down and she has relocated to a new domain -- http://www.libraryvixen.com/ .
I presume the full story will come out eventually, but for now, at least you know where to find her again! She's too talented a scribe to get lost, so make sure you update your bookmarks.