AI on the Web: A nice collection of AI material on the web.
Marty Hall's Introduction and Tutorial for Common Lisp: A list of LISP resources, including books and online references. I agree with his list of books on LISP, especially LISP by Winston and Horn, and Guy Steele's reference manual. Both are available at the library.
Pascal Costanza's Highly Opinionated Guide to Lisp: Contains more about LISP that you ever cared to know, often in the way of a plethora of links.
Characteristics of LISP: From Stewart Russell's Intro to AI Course
LISP vs Scheme: From Drew McDermott's Intro to AI Course
More LISP vs Scheme: From Gordon Novak's Notes