Interest groups play an important role in the legal system, participating in a wide array of cases as litigants, sponsors, amici curiae, and intervenors. This chapter provides a critical analysis of academic scholarship on interest group litigation, devoting particular attention to establishing the limitations of the current state of knowledge and providing suggestions for future research. This chapter demonstrates that, while there has been a great deal of research on some facets of social movement litigation, such as amicus curiae participation in the U.S. Supreme Court, others have been relatively unexplored, including investigations of coalition formation, venue selection, and extrajudicial lobbying. Thus, there are ample opportunities for future scholars to contribute to our understanding of planned litigation by organized interests.