And don't miss this splendid piece by Ian McEwan: Beyond the bounds of realism. (Hat tip, Dave Lull.)
That is the best piece on Updike I have read. Makes me want to sit right down and re-read chucks of his work. McEwan's grasp of the religious dimension to Updike's writing is especially insightful: 'he was constitutionally unable to "make the leap of unfaith".' Me, too.