This article describes parent groups as social networks that are loosely coupled to schools. The study investigated parent groups that work together to support schools by networking, responding to change, seeking input on policy decisions, and communicating with school leaders. Parents from one elementary school who participated in two focus group interviews described parent networks that contributed their resources to activities and attempted to influence policy initiatives. Parent groups' investment in members' children and issues that are important to them supports parent groups' potential to aid school leaders in making and implementing policy decisions.