This document examines transparency issues in the data usage policies of large social media networks like Facebook, Twitter, and LinkedIn. It finds that while the policies appear clear, most users do not actually read or understand them. The networks also frequently change how they use and share data without updating policies. This became a major issue after Facebook conducted an emotion manipulation experiment on users without their consent. The document argues that social networks need to improve transparency by making policies more visible, explaining how data is used simply, and giving users more control over their personal information.