Hello webmasters in the house, am very curious about this stuff, how do Nairaland,Facebook, Google, bing and others convert, make and receive their Money. Am very curious, I know many are too

I think adverts is the main source of income but you can Google it for more information

I would say but the powers which govern this forum would end up deleting my post before you get to read it.

As for Whatsapp, Google and Facebook, they make money from selling user data to advertising companies who personalize adverts to suit your taste e.g. during a period which I heavily partied, clubbed and loaded the pictures on Facebook I received more adverts on my feed from wine and beer companies. Friend suggestions were also made to people in my location with similar interests. My friends who're heavy church goers get adverts on the regular from Nigerian based church organizations due to their user data.

Why I mentioned Whatsapp is because in cases where individuals default on bank loans or are suspected of being potential terrorists the company sells your information(Facebook + Whatsapp activity) to the neccessity authorities.