Just directing anyone who reads this blog and doesn’t check Tom’s excellent Grundlegung blog to head over there, as he’s linking to two very interesting essays with different takes on the relation between nature and normativity. Marvellous stuff.
Over at Grundlegung…
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DEONTOLOGISTICS 
You may also be interested in this blog, which primariy focuses on the relationship between the life drive and the death drive in the context of the exploitation of mortality and Badiou’s take on immortality…
http://speculativerealism.wordpress.com/