Most of emacs and its many extensions/modes are written in emacs lisp.
The Orbitz travel web site runs on Lisp: paulgraham.com/carl.html.
The Operating System and in fact the entire system on the various Lisp Machines was written in Lisp. In fact, while the commercial Lisp Machines often used more traditional languages such as Verilog and VHDL, on some of the more "researchy" Lisp Machines, even the CPU was written in Lisp. Lispers just love their language.
They'd rather write everything in it. (In that way, they are similar to Smalltalkers. ).
Flightcaster is a heavy user of Clojure. While Ruby on Rails provides the pretty face, all the "thinking" (statistical analysis / machine learning) is done in Clojure.
There's a discussion from Lambda The Ultimate from a couple years back that's relevant.
The early versions of Reddit were written in Lisp. The Yahoo Store (formerly ViaWeb) was written in Lisp.
Some links from the ALU website: wiki.alu.org/Success%20Stories wiki.alu.org/Industry%20Application wiki.alu.org/Research%20Organizations.
These bioinformatics platforms are both built on Lisp: BioCyc (sorry, can't post a link -- try biocyc dot org) BioBike (sorry, can't post a link -- try biobike dot org) As was this commercial application for pharmaceutical chemists: franz.com/success/customer_apps/bioinfor... All are fairly large projects, at least in terms of complexity (I've worked on all three of them).
GBBopen is an actively maintained AI framework, a blackboard system, in Lisp -> gbbopen.org/overview.html.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.