Timothy Clark on Maurice Blanchot (via pas au-delà - and also see Steve on Clark's Routledge Critical Thinkers: Martin Heidegger):
Literature fascinates Blanchot as a site of irreducible strangeness and resistance to conceptual thought. Blanchot's critical thinking re-engages the old dispute between poetry and philosophy. The mode of being of literature eludes notions of strict essence, evaluation or weighing, in terms of its supposed truth or falsehood. The space of literature is not one that can feed into any sort of thinking in terms of cultural monuments, human values or edifying reflection. It is a space of crisis and the dissolution of certainty.
See also The Poetics of Singularity: The Counter-culturalist Turn in Heidegger, Derrida, Blanchot and the Later Gadamer (EUP).