This directory includes profiles on 80 individual professional development schools (PDSs) in 19 states; the profiles outline program characteristics and provide location and contact information. The data on each school were gathered by a survey conducted by the Clinical Schools Clearinghouse beginning in the fall of 1991. Findings from the survey which included PDSs, professional practice schools, clinical schools, professional development centers, and partner schools indicate that more than 125 such schools have been established since 1986. These schools and centers were implemented by collaboratives which consisted of at least 1 college or university; at least 1 school district; and with 29 percent of the respondents affiliated with at least 1 teacher union. Many PDSs are affiliated with national, regional, or statewide consortia. Program characteristics include: collaborative research involving school and college faculty; school faculty members holding joint school/college appointments; preservice and inservice teachers involved in educational research conducted at the school site; release-time or reduced course loads for master, mentor, and/or cooperating teachers; clinical supervision of preservice teachers; and structured learning experiences, for preservice and inservice teachers, related to educating minority group students. Included in the appendices are: the data collection form used in the survey, a summary of the survey data, and a bibliography of sources related to projects included in the directory. (IAH)