Luckily, there's the fan-maintained Destroyer wiki: almost every noteworthy reference, explained, catalogued, and summarized. I haven't gone much further than the Destroyer's Rubies section, but I found it entertaining enough. And the notion of a Bejar wiki is kinda funny in and of itself... he's so obtuse, we need a web-based non-linear documentation platform just to keep track of what the hell he's on about. As someone who gets the joke, I thought it was fun.
(Fun aside: the link comes courtesy of Marathonpacks' excellent year-end list. The author gets huge props for the following line, during his review of Danielson's Ships:
"The thing that sucked about Illinoise... was that, for all of his innocent, construction-paper pretensions, I still got the feeling that Sufjan just wanted to fuck my girlfriend."
Hehe. Yeah, I bet Suf's quite the tomcat. "Well, sure, all things go, all things go... but all things come too. The power of Christ compels you!!!")