Starting soon, the icon below will let you know that Facebook is tracking you for third-party ads. The symbol, which was introduced last year, will be prominent when you hover your cursor over a Facebook ad that has been served up for a third party.
For instance, if you see an Amazon ad on Facebook for a book you were just checking out, then you'll likely see the icon. Such ads are served up by Facebook Ad Exchange. The measure comes after Facebook's agreement with the Council of Better Business Bureau on Monday.
The Digital Advertising Alliance launched the icon last January to raise consumer awareness about ads based on behavioral targeting. An advocacy group, the DAA reasons that more information about behavioral targeting (or "interest-based advertising," as it prefers), will address fear and mistaken assumptions about the practice. In the video below, the organization explains the thinking behind the symbol: