A questionnaire survey mailed to all U.S. undergraduate institutions in October 1971 was conducted as part of an evaluation of support service programs for disadvantaged students funded through the Higher Education Amendments of 1968. The inventory contained 14 items that sought summary information about the institution's budget, number of students, percentage of student body disadvantaged (from deprived educational, cultural, or economic background or physically handicapped), Special Service or similar programs (e.g. counseling, tutoring, career guidance, placement), number of involved faculty and staff, nature of programmatic activities, and extent and source of financial support. Of the 2,991 institutions contacted, 59 percent responded. Several procedures were employed to check for biases among respondents. Major findings: About 14 percent of enrolled undergraduates are estimated to be disadvantaged, with considerable variability among percentages in different types of colleges and geographic regions. Half of the institutions reported special support programs, one in three with federal support, one in seven state or local, one in seven institutional, and one in 20 private foundation. Federal funding has been given to those institutions with larger proportions of disadvantaged students. Services provided and their effects depend more on institutional factors than on support program factors. (JT)