Wow... thanks for the awk history lesson. I didn't learn awk until about 10 years ago, but now it's one of my favorite programming languages. It's a fine example of a domain specific language.
My experience with lisp is basically limited to scheme, which is a major bias, I'm sure. I get the feeling that common lisp is a bit friendlier, and makes things like user-defined macros a bit easier. The scheme documentation on the web is not all that user-friendly, and I'm forced to confess that I've never created a macro.
