Hi,
http://shoptoday7.info/ is a bible mailer site
They may be using all kinds of tags not related to preaching to draw surfers to their site.
Websites, blogs, forum and all kinds use the same kind of ruse to obtain a higher ranking with google.
Goto Google and learn more about tag stuffing which will eventually catch up with them and their websites will be dropped.
It is beyond your control. Improve your own tags in as many innovative way as possible to address your own products and add more contents and links to your webpages and you will be okay.