Ans 5.. (i) Google is just throwing random pool of result for the question or problem asked. To reach and find the very-specific-most-fit-and-accurate answers, solutions and links instantaneously is still a TOUGH and DAUNTING TASK. We have invented and discovered its solutions.
(ii) Facebook & Linkedin has huge data but not an advanced search engine to pin point and filter the data to filter it as per your required parameters. Secondly, world population is more over 7 billion. It has only 1 billion data. We have invented and discovered its solutions.
(iii) Linkedin is taking all your email data @ FREE_of_COST and selling 1 address @ $ 10. LinkedIn, Facebook & Twitter paid subscriptions are very costly which majority of People and Companies cannot afford. We have invented and discovered its solutions.
(iv) There are many more things which are confidential and therefore we cannot share all that here since we do not yet have any business relationship.