Why not sell this data to Google and other search engines, instead of competing directly with them? Note that I've used XMarks / delicious in the past to get m

Why not sell this data to Google and other search engines, instead of competing directly with them? Note that I've used XMarks / delicious in the past to get more relevant results. When a link has been bookmarked by many users, it is more likely to be interesting. It was extremely useful when approaching an unknown subject.