Google's 'Scientologist' principle that what's true is what's true for you is true. Google shifted from relevancy conception to 'value' conception. Probably, th

Google's 'Scientologist' principle that what's true is what's true for you is true. Google shifted from relevancy conception to 'value' conception. Probably, they have some data that this makes users more satisfied in average. I agree that you could beat Google on niche markets, some people will prefer relevancy to value, like search of pdf documents for instance, or structured search, etc. Although you should differentiate yourself from Blekko and similar guys. I was working on interest search and data clustering for Facebook year ago, kind of mix of social network and search engine - it took me a lot of resources that I did not have, but this was very exciting.