Some sources and excellent documentation are on the bitkeeper.
There is also the MIT Scheme, as seen on TV in the Wizards Lectures (1986 Abelson & Sussman SICP lectures).
BTW, the guys who designed and developed early lisps, up to 80s, were bright people heavily influenced by discoveries of "modern science" of the time, which were genome and protein structures, basics of cell biology, signaling pathways, early genome sequencing techniques etc. Their designs has been based on right principles. Erlang is another example.
Another obviously successful project is called (surprise, surprise!) GNU Emacs. Non surprisingly it is a continuum of early emacses, such as Zmacs.
Recently, Eitaro Fukamachi (a true hero, in my opinion) have bootstrapped a few remarkable projects, which should mark the beginning of the Common Lisp renaissance, but these projects also went unnoticed by packers. Why Clack when we have PHP or Java Server Faces?
As for Erlang syntax - the pattern-matching on receive with variable binding for simple, terms-based protocols is, again, too good for mediocrity to grasp
{ok, Val} | {error Why}