For decades it has been happening everywhere in academe, but nowhere in particular. The sweeping shift toward non-tenure-track academic labor has been one of the most worried-over trends in American higher education. But it has been charted mostly with broad-brush data, which give little indication of the trend's progress at the institutional level. This article describes a new index of employment information, the Contingent Faculty Index, which was published by the American Association of University Professors (AAUP) to fill in those gaps. Drawing on data collected by the U.S. Department of Education in 2005, the AAUP has compiled the numbers of tenured, tenure-track, part-time, and full-time non-tenure-track faculty members employed at 2,617 American colleges and universities. The index, which does not present a set of rankings, also reports the number of graduate students employed by those institutions. Like the survey of faculty salaries published by the association every year, the faculty index will, its authors hope, function as a report card that calls institutions to account for their hiring practices.