'Marketplace' Report: Facebook and PrivacyFacebook has begun tracking users' activities on other Web sites and then reporting them to their online friends. Amy Scott discusses the privacy concerns this new move has raised.
Facebook has launched a new method of advertising that's alarming some of its users. It tracks their activities on other Web sites and then reports to their online friends. Marketplace's Amy Scott speaks with Host Madeleine Brand about privacy and Internet-based social networks.