The #acadv Twitter chat is an organic, online community of higher education academic advising professionals. Using a longitudinal study, we explored the way a self-directed learning network sustains ongoing professional development and knowledge sharing by examining the archives of 203 structured online discussions. In mapping the chat topics to published core competencies, we discovered that this advising community scaffolds on-demand learning for discussion of advising approaches and strategies, distribution of resources for supporting student success, collective sharing of personal advising philosophies, and encouragement to engage in reflective assessment about advising practice. Community members are motivated to contribute to networked practice to enhance professional development activities, share open educational practices, and support advising competency development in an occupational community of practice.