Every story and comment from the Hacker News API, in a layout borrowed from 2001.
A comment on History of Lisp (1979) [pdf].
http://cl-repl.org
(Sorry for the shameless plug, wouldn't have mentioned it if it weren't both free and open source).
http://cl-repl.org
(Sorry for the shameless plug, wouldn't have mentioned it if it weren't both free and open source).