WebCLIPS: implements CLIPS as a CGI program with lots of
useful features. GIFs-on-the-Fly, full screen input, passing facts between screens, etc.
Books
Expert Systems: Principles and Programming, 2nd Edition, by Giarratano and Riley.
The first half of the book is theory oriented and the second half covers rule-based programming using CLIPS (nothing
on COOL).
Publisher: PWS Publishing Company, 20 Park Plaza, Boston, MA 02116-4324. Phone: (617) 542-3377. Fax: (617) 338-6134.
The Engineering of Knowledge-based Systems: Theory and Practice,
by Gonzalez and Dankel. The use of CLIPS isn't integrated throughout the book,
but there is a 25 page appendix that describes the fundamentals of
using the CLIPS executable bundled with the book.