Waldrop on the Retro Hugos

Howard Waldrop, perhaps best known for the wonderful story The Ugly Chickens, and next year's Capclave GoH, has a fine review of this year's retro-Hugo nominees. Remember, the deadline for submitting ballots for both the Hugos and Retro-Hugos is July 31!
(Thanks to Elspeth Kovar for the link.)