This has always been a handy little plugin and I thank you for putting it out there.
A client of mine wanted to know if the IP address of the actual search could be added to this plugin's reporting interface. I found this to be a good point, as it could be an additional tool for keeping spammers and robots that you do want crawling the site, off of the site.
I am just wondering if this is something that could be implemented in a future release? If not, I might just add it myself.