Some 3,000 students from varied backgrounds are now enrolled, under the auspices of 20 colleges and universities, in programs that constitute a distinct alternative to usual college offerings for undergraduates. These programs are called Universities Without Walls (UWW). The structure of each unit of the UWW has been devised by a team of students, faculty, and administrators. These structures are still being improved as experience accumulates, but the principle of genuine student involvement and responsibility is fully recognized. Admission policies have varied from highly selective to open admissions. Most UWW units have been concerned with students' motivation and life-achievement more than with test scores or academic grades. Each student follows a program tailor-made by the student and his adviser, who is considered a learner-facilitator. Students use a variety of learning experiences to achieve their objectives: regular course work; internships, apprenticeships, and field experiences; independent study and individual and group projects; programmed material, cassettes, and other technological material. (Author/HS)