The abundance of library associations provides many choices to academic librarians about where and how to belong. This exploratory article identifies and compares benefits of library professional organizations through content analysis of the groups' websites. Examination of the benefits described on the websites of 76 organizations indicates that they have a high degree of overlap. Many benefits are also achievable by participating in other external professional activities. While data were collected just prior to the start of the COVID-19 pandemic, thematic analysis of these benefits provides a framework for comparing the value of participation in formal and informal professional communities.