Since professional development schools (PDSs) emerged in the mid-1980s as a promising approach to improving teacher education and P-12 schooling, information about these institutions has become more abundant and more accessible. Four primary sources of PDS information are discussed in this digest: the ERIC database, electronic resources, fugitive literature, and information centers. The discussion of ERIC resources suggests productive database search strategies. In an overview of electronic resources, contact information is given for several PDS-related listserves and world wide web sites. The digest offers guidelines for tapping fugitive literature and identifies seven organizations and projects that collect, generate, or disseminate information about professional development schools. (IAH)