Facebook, Inc., launched a program called “Beacon” that automatically updated the profiles of users on Facebook’s social networking site when those users had any activity on Beacon “partner” sites. For example, one partner site was Blockbuster.com. When a user rented or purchased a movie through Blockbuster.com, the user’s Facebook profile would be updated to share the purchase. The Beacon program was set up as a default setting, so users never consented to the program, but they could opt out. What are the ethical implications of an opt-in program versus an opt-out program in social media?