Volunteerism has existed for centuries, but formalized volunteer programs have come about only recently. Student volunteerism became popular during the 1960s and 1970s as colleges and universities encouraged community service through campus-based programs. This study examined college student volunteers (N=199) from four different campus volunteer organizations with regard to Holland type and motivational needs. Subjects responded to the Adjective Checklist in which subjects picked adjectives they perceived as describing themselves and the Self-Directed Search which measured personality/occupational typologies. The results of the tests indicated that there were differences among the groups of volunteers and between volunteers and non-volunteers. People and environments both have characteristic "personalities," and individuals seek environments in which they can express their strengths, values, and primary characteristics. Through a better understanding of characteristics and motivations of individuals who volunteer, programs can be better designed to recruit and retain volunteers. (ABL)