The book Visions of Mars is approaching publication. Its a collection of essays and articles which are mostly derived from the 2008 Eaton Conference, which was subtitled "Chronicling Mars". The book looks at the way Mars has been depicted in literature, film and popular culture.
The table of contents is now online. I see my chapter "Re-Presenting Mars: Bradbury’s Martian Stories in Media Adaptation" is smack in the middle of the volume. There is one other paper specifically about Bradbury, from Eric Rabkin, and also a transcript of a roundtable discussion between Bradbury, Fred Pohl and George Slusser. I'm sure there will many other passing references to Bradbury, as my recollection of the conference is that his name came up again and again.
The volume is quite expensive (40USD for a softcover version), but this is an academic volume and they tend to be pricey. Release date according to the publisher is now May 2011. (I notice that Amazon still shows the original release date, and also has a higher price than McFarland publishers!)
I see that Harlan Ellison has been nominated for a Nebula Award from SFWA (the SF and Fantasy Writers of America) for his short story "How Interesting: a Tiny Man". The story was first published in February last year in Realms of Fantasy magazine, copies of which can be ordered from the magazine's own website.
Ellison is no stranger to the Nebulas. He was the first ever recipient in the Short Story category, for "'Repent, Harlequin!' Said The Ticktockman" in 1965. His last Nebula win was 1977's "Jeffty is Five". His most recent nomination (before "Tiny Man") was in 2003 for "Good-Bye To All That".
"How Interesting: a Tiny Man" is a beautifully clear piece of writing, but is deceptively more complex than it appears on first reading.