LinkedIn, meanwhile, actively promotes its half-billion-plus membership base as an asset to colleges in search of students. It, too, is focused chiefly on the postgraduate market, after a brief foray into the world of undergraduate admissions. (In 2014 it began a college-ranking site and related services, but it shuttered most of those features two years later.)
For real I can't see alternative for Google. If you are smart enough you can use Google without giving them too much data about yourself. Just use incognito mode in chrome, change applications permissions at your phone, etc. Use it smart. Of course you can't hide all informations about yourself but you don't need to login as Adam Smith, use nickname, turn off GPS if it's not necessary.
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