In the 90s, as PhD student at Stamford, sergey and Larry teamed up on a thesis project in which they sought to determine the relative popularity of each of the 10 million pages on the Web. Your priority isn't measured by how many people you like. It's by how many people like you. Studying the structure of the Internet, Larry discover of a similar truth. It's not how many sites you link to that matters. What matters is how many sites links to your page