I couldn’t let this go without comment.
The funniest, cleverest, and most humane of all the Golden Age SF greats died today, aged 93. He was still sharp, politically outspoken, and writing until a couple of days ago — you can see his blog, which was required reading, at http://www.thewaythefutureblogs.com/
I’d been almost sure he was immortal. A massive loss…
If you’ve not read any of his stuff, Baen have a great Best Of of his short stories as a DRM-free ebook for $5. I can think of very few better ways to spend that little money.