My current favorite art blog is 'The Art Object' by Lauren Palmor, which she describes as "A visual arts diary: Exhibition reviews, and profiles of museums, galleries, and emerging artists". Most importantly, this blog makes me feel ashamed for skimming through anything quickly, gently leading me back to the beginning to read the blog as if it were a book.
Examples of wonderful posts from this blog:
'Closely Watched Trains'
' 'Mythologies' at Haunch Of Venison'