https://gizmodo.com/why-these-social-networks-failed-so-badly-1836996164
origin - https://www.pipiscrew.com/?p=15489 social-networks-that-failed
https://gizmodo.com/why-these-social-networks-failed-so-badly-1836996164
origin - https://www.pipiscrew.com/?p=15489 social-networks-that-failed