I've used Lisp fairly extensively for AutoCAD programming (and my programs still work in AutoCAD Mechanical 2011). I've also used it a little to customize Emacs.

The way I always heard it, the joke acronym for Lisp was, "Let's Insert Some Parentheses."

I found it rather ridiculous that the death of Steve Jobs garnered so much attention in the tech industry while the deaths of Dennis Ritchie and John McCarthy (the inventor of Lisp) at around the same time seemed to be barely noticed. From a business perspective, Steve Jobs' death may have been more momentous, but from a technical perspective, Dennis Ritchie and John McCarthy were each a bigger influence on the current status quo.