1. We'll deal with ad-tracking first. Click on the down arrow at the far right of your Facebook page.
You can comfort yourself a little bit with the knowledge that the ads being targeted at you are coming anonymously and in bulk at everyone who is in some way similar to you. They aren't literally being targeted at you personally, even if it feels that way.
5. Inside the edit menu, it will show you how your Facebook ID is used in ads that other people see. In this hypothetical example, my friends are apparently seeing an ad for Jasper's Market that it appears I have endorsed (the ad is triggered by the fact that I liked the company in the past).
7. Now for the apps. That requires a bit more digging. Go to the "lock" symbol on the far right of your Facebook page.
11. This is the shocking bit — the list of company apps that are tracking you on Facebook. Apparently I have allowed 54 apps access to my Facebook account. Be sure to click on the "show all" button to get the full list.
12. Voila! The list of apps tracking me is so long I have to make this zoomed-out view to see them all.
13. Hover your mouse over one of the apps. You have options. You can edit the app's permissions or delete it completely so it can no longer access your Facebook account.
14. TripAdvisor knows my email, my age and — oddly — my work history! I love TripAdvisor. But this feels like a reach.
Review each app to edit its permissions or delete its access to you on Facebook entirely. It's a bit time-consuming — but otherwise you're just giving these people free data.