No More Facebook Ads for GM...

I've always been curious about how social media sites like facebook actually do make money. I know it's through advertising. But I often wonder whether or not that kind of advertising works. I've never clicked a facebook ad in my life, and do not intend to click one either. Most of the people I know who use facebook have never clicked on a facebook ad.

So there must be people clicking these ads somewhere, otherwise facebook wouldn't be worth so much money.

But could there be a glitch in this,...