[cryptonector]

> While I'm here I'll ask: does anybody have a recommendation for resources on learning lisp that focus on how the interpreter/compiler works?

Yes: Lisp in Small Pieces, by Christian Queinnec.

I've read a fair number of books on Lisp, including Paul Graham's On Lisp and ANSI Common Lisp, and IMO Lisp in Small Pieces is the best for understanding how to implement a Lisp. LiSP covers interpreters and compilers, and it covers how to implement call/cc. Like Paul Graham's books on Lisp, LiSP is highly enjoyable -- these are books I read for fun.