There are more than 19,000 nonprofit organizations devoted to supporting public education in the United States. These organizations include booster clubs, parent-teacher groups, public education funds, scholarship funds, high school alumni associations, and others. This report assesses the current status of education support organizations; provides details on the activities, capacities, and resources of public education funds; and compares Public Education Network member organizations with other types of education funds. On the basis of a survey of public education funds and an analysis of the latest data available from the National Center for Charitable Statistics, the report identifies key similarities and differences among the groups.