Social Networking Site... facing Protests amongst users

The popular college student social networking website Facebook has many of its users protesting a new program that sends messages to users about what their friends are buying on Travelocity.com and other websites. Facebook has said that there is a box that says that you can opt out. However, users are saying that they didnt see any boxes that said this. Recently, the social networking site has said that they will not post them with approval from its members.