The document describes a study on using Twitter for academic writing instruction. Over 3 semesters, the researcher implemented Twitter in advanced writing courses and collected student feedback and data. Based on the findings, the researcher refined the instructional design to better support constructivist and experiential learning principles. Key revisions included providing more training on using Twitter, implementing structured assignment types that required higher-order thinking, and facilitating greater interaction and resource sharing within student networks on Twitter. The researcher concluded that Twitter has potential to enhance writing instruction by enabling authentic practice and feedback within large online communities.