Google is like a friendly talkative aunt who knows lots of things about lots of people and will tell you all about them if asked. She's good to know, but she has lots of advice about things you can buy, and don't tell her anything you don't want everyone on the planet to be able to find out.
Facebook is like the fluffy bunny who wants everyone to just be friends and keeps trying to connect your political activist friends to your business associates. She may mean well, but she can sure make your life difficult. She also keeps her own business secret and makes quite a business of selling gossip, so she may be mercenary and malicious rather than fluff-headed.
As for us corvids…