Originally Posted by CyberSEO

SE business is a very different story. You can not generate relevant SERP's without having a trusted ranking mechanism. Google uses their spy tools like Chrome and Google Analytics to determine the site popularity/rating. All those other methods that analyze backlinks don't work anymore because they can be easily tricked by SE spammers. So if you don't have enough resources to harvest user activity info directly from their personal computers (Chrome) and websites (Google Analytics), you can't make a good SE which will make any competition to Google