FEMALE SCRIBES aren't any easier to find than female bibliobloggers, but Aviel Barclay-Rothschild is one (a scribe, that is), and she also has a blog: Netivat Sofrut: diary of a Soferet. I have no idea if she would want to be known as a biblioblogger, but she certainly talks about the Bible and also posts samples of her own biblical scrolls. She has a post on medieval female scribes here.
(Via Manuscript Boy, who has more on female scribes at Hagahot. He also has some good thoughts on the limits of the contribution of manuscripts to scholarship. Read the comments too.)