I've noticed a bunch of errors in the error_log file like this:
[Mon Apr 08 04:15:44 2013] [error] [client 18.104.22.168] File does not exist: /serverpath/for-business, referer: http://www.somewebsite.com/somepath
When I go the referring page and search through the source code, I cannot find a URL to our website. I'm baffled. What's causing these errors?