Caught this bot checking out my site:
5.63.145.nn - - [26/Feb/2013:03:08:22 -0500] "HEAD / HTTP/1.1" 301 - "-" "checks.panopta.com"
Didn't like what their site had to say (a competitor monitoring my site), so blocked it in htaccess. Didn't see anything about them in a search on webmasterworld, so thought I would just pass it along for your info. So far two IPs associated with this user agent: