You’ve been Hijacked!
Here is a somewhat comical article where a guy by the name of Dan Petrovic was able to “hijack” a couple pages in Google. For example, he was able to confuse Google into thinking a page on MarketBizz should really show on dejanseo.com.au instead of on marketbizz.nl.
Once he could verify his results he then contacted Google via email but have not heard anything from this. Im sure this will be fixed pretty quickly.
Here’s a link to the original webpage.
Hijacking Google Search Results With Duplicate Content