Another two factors in the '00s re-rise of Lisp were Steve Yegge's Drunken Blog Rants (https://sites.google.com/site/steveyegge2/blog-rants https://sites.google

Another two factors in the '00s re-rise of Lisp were Steve Yegge's Drunken Blog Rants (https://sites.google.com/site/steveyegge2/blog-rants https://sites.google.com/site/steveyegge2/blog-rants) & Practical Common Lisp (http://gigamonkeys.com/book http://gigamonkeys.com/book). The former was, at the time, very influential (and deservedly so); the latter was and remains the best reference for actually using Common Lisp to write real software (Edi Weitz's Common Lisp Recipes is an excellent companion volume).