This study analyzed how faculty use social media to support student learning through social media learning activities (SMLAs). The analysis found that SMLAs promoted cognitive processes like understanding and remembering, as well as higher-order thinking through activities like blogging and wiki editing. SMLAs also engaged students in different types of knowledge, including factual, conceptual, and procedural knowledge. The study provides insights into how to best design effective SMLAs by matching the social media tool to the discipline, including media sharing, and making activities mandatory.