Bruce Sterling has a nice obituary for J.G. Ballard in the May 4 issue of Time magazine. I am always heartened when a mainstream news magazine takes notice of the passing of an SF writer. Bruce manages to pack a lot into three paragraphs: Ballard's reputation, stature, obsessions, taste in clothing, and ability to arouse strong feelings in his fiction (a publisher's reader described him as "beyond psychiatric help").
The first Ballard story I ever read was "Belladonna." I was quite young, and I remember going "Wow!" Years later I taught the story to college freshmen, and as I reread it to prepare my class, I went "Wow!" all over again. So did the freshmen, except for those who went "Huh?" Ballard was not for everyone. But he had, to a huge degree, a quality that science fiction does -- and should -- prize. His fiction was original. There is no mistaking a Ballard story for anyone else's.