You can read more about how ads work in non-legalese at: https://www.facebook.com/about/ads/ In non-legalese, how Facebook uses information it receives on

You can read more about how ads work in non-legalese at: https://www.facebook.com/about/ads/ In non-legalese, how Facebook uses information it receives on users: https://www.facebook.com/about/privacy/your-info#howweuse The actual data use policy: https://www.facebook.com/full_data_use_policy The path to these last two - click "Privacy" at the bottom of a Facebook page.