f8 | live

You can watch Facebooks Developer Conference f8 live here:

Your Photos in Facebook-Ads

If you want to prevent Facebook from using your Photos in Facebook-Ads:

Login
Chose "Account" in the top right corner.
Chose "Account Settings"
Chose "Facebook Ads" on the left.

click "Edit third party ad settings" in the middle. Then chose "No one" in the drop-down menue.
(See picture below)

For clarification: The feature of using your photos for Facebook-Ads is not active on Facebook yet.