It provides a good overview of the laws most commonly relied upon in Social Media policy development.There are several case studies that provide excellent insight into the potential consequences of implementing a poorly written or unenforced policy.
For Information Security policy Analysts who have extensive experience researching and writing security policy, most of this will be review. But an examination of the basics is often useful.
DMCA: Digital Millennium Copyright Act (DMCS) of 1998 (The DMCA allows internet service providers to shield themselves from liability for copyright infringement due to infringing activity by users of the service provider’s networks.): https://www.copyright.gov/legislation/dmca.pdf
ECPA: Electronic Communications Privacy Act (ECPA) 18 U.S. Code