AND! this is the response that I got from Google when I queried it...
Thank you for your note. We understand your concern and would like to assure you that Google never inserts jokes or sends messages by changing the order of its results. Occasionally, when a particular website is the subject of public attention, other sites begin linking to it. This may elevate its importance as gauged by our ranking software, which assigns a PageRank value based in part on who links to a given page. Higher ranking in Google results may lead to more awareness, which may lead to more links and so on.
One side effect of not using an editorial viewpoint to determine the ranking of results is that anomalies occasionally occur. We view such occasions as opportunities for us to learn more about how the web works and how to improve our algorithms for all searches in the future.
Regards,
The Google Team