Denis Dutton died yesterday. His website, Arts & Letters daily, has been a part of my daily routine for more than ten years. I didn't agree with all of his ideas, but he was open-minded in interviews, and I feel like I knew the guy.
Also, no one really mentioned it on this board, but Peter Christopherson (Throbbing Gristle, Coil, Hipgnosis) died recently, too. This is a somewhat recent video he made for his 1986 song, Ostia (the Death of Pasolini):
Coil - Ostia (the Death of Pasolini)