The document summarizes topics from a class on social media practices and analysis, including: - Presentations on understanding and using different social media platforms and their utility for PR. - Discussion of Twitter in the context of communication innovation and interconnectedness. - Theories about how the medium of Twitter is interconnected with social aspects. - Ethics concepts in social media from Stanford professor Shannon Vallor. - Analytics tools for measuring social media return on investment and engagement. - Assignments for the next class, including discussion questions and readings.