I've run into a bewildering array of user agents since I began to look at my server logs.
So I wanted to look up some of them. I found several lists, but to my amazement, I was unable to find the ones that have been coming to my site. Instead, I found another bewildering array quite distinct from most that I have seen on my own site.
http://www.robotstxt.org/wc/active/html/index.html
http://www.jafsoft.com/searchengines/webbots.html
http://www.icehousedesigns.com/useragents/
http://www.psychedelix.com/agents.html
Dated: 12/02/2002