Most of the Common Lisp libraries I once wrote are now available via GitHub at https://github.com/edicl
. Please update your bookmarks or links.
If there's something that's not in that repository, you might find it at https://weitz.de/files/lispOld.zip
or at https://github.com/lispstudent/weitz-lispOld
.
My Lisp book is here.