How to get a list of the IP addresses from which spiders crawl websites in order to filer them out of access log analysis? In other words, I want to disregard any traffic to our websites that are being generated by spiders so as to have a more accurate count of "human" traffic. To do so, need to know which IP numbers in the access_log are from Google's (and other search engines') spiders. Do such lists exist? Thank you..