Facebook is the primary method that billions of people across the world use to stay in touch with family and friends. It's one of the most important pieces of my life and something I come back to almost every single day.
And no, I've never worked there nor will I ever. I don't own a single share of FB stock. I'm just a user who appreciates the value of what he uses, or at the very least, can appreciate the value that other people get out of a product that I myself may never use.