One surprise: People with no apparent interest in UFOs visit, looking for a map of Fergulia or whatever.
I know this is probably getting off-topic, but how do you find out what words visitors were searching for when they go to your site? Is this a program you are using, or is this available in your webstats? If it is in your webstats, is this a common feature? (I have not come across anything like that in mine).