The Film Noir Encyclopedia (new editon)
Alain Silver; Elizabeth Ward; James Ursini; Robert Porfirio
Release Date: May 13th, 2010 Pre-Order
Film Noir, American Workers, and Postwar Hollywood (Working in the Americas)
Prof. Dennis Broe
Release Date: April 1st, 2010 Pre-Order
Historical Dictionary of Film Noir
Andrew Spicer
Release Date: April 15th, 2010 Pre-Order
FilmsNoir.Net 
All superb volumes for sure, though it’s clear the Spicer is the most scholarly. But it’s pricey and it’s marked down very little. Still, I think there be ways to find it cheaper.
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