According to the Center for Ray Bradbury Studies website, the Spring issue of RADIO SILENCE magazine will carry an article on Ray by Dana Gioia, the man behind the NEA's Big Read programme. Details here:
I don't believe there was ever a follow-up posting to that of philnic above. The second issue of RADIO SILENCE did indeed have a section on Ray Bradbury. It features an interesting article by poet, critic and former NEA Chairman Dana Gioia called "Ray Bradbury's Butterfly Effect", a drawing of Ray by artist Wendy McNaughton, Ray's poem "A Poem Written on Learning That Shakespeare and Cervantes Both Died On the Same Day", and a short interview of Ray by Mr. Gioia. The magazine (over 200 pages long!) was published in 2013 and is out of print, but copies are still available from its art director...just click on the link below for ordering information. Incidentally, as NEA Chairman, Mr. Gioia led the committee that recommended Ray for the National Medal of Arts, which Ray was awarded in 2004: