The book's website has a pretty exhaustive "discography" at the bottom of the page...
http://www.simonreynolds.net/

...of groups mentioned substantially in the book, and another list of bands mentioned in passing, and it doesn't seem like the dB's are in there. Pylon is, for what it's worth. Seems like it might be a terrific book, though.

I heard Simon interviewed on KDHX Community Radio in St. Louis last Wednesday night. It was on Rob Levy's show "Juxtaposition." Very good interview. Wish Rob would have brought up some of the the great late seveties, early eighties post-punk pop bands from the south. I know he's a big fan of many of those bands. He did an interview with Mitch Easter just over a year ago.