My blogspot blog was served as the first result of a personalized search for my friend — this is "personalized search", an opt-in feature that uses someone’s search history and location as signals to determine what kind of results they’ll find useful. Or as search quality engineer Patrick Riley puts it: every time you search on Google, you’re a lab rat.
The search terms were about a certain song and my blog post was totally irrelevant result. And it's pagerank is low. Only imaginable reason for my blog being the first is our gmail correspondence. How on earth could that be the first? Any idea?