Medievalists.net has an article titled Why Cats were Hated in Medieval Europe that I liked. It references Irina Metzler’s article Heretical Cats: Animal Symbolism in Religious Discourse which seems to be only available in German, and Joyce Salisbury’s The Beast Within: Animals in the Middle Ages which is available in English as an ebook.
Medievalisterrant chimes in with a post on Cats as pets in the Middle Ages.
Dennis Aubrey has been photographically documenting the restoration of the Cathedral Notre Dame de Chartres.
The restoration of the stained glass at the cathedral is one of the great accomplishments of this project. Long considered the finest ensemble of medieval glass, we are just now beginning to see the windows in their original condition again. The years have not been kind and the accumulation of inside dust and outside pollution had made the windows almost opaque.
Shots of the newly cleaned windows are at Via Lucis.