Big Brothers Big Sisters of the Greater Sacramento Area (BBBS) is a mentoring organization that provides one-to-one mentoring for children, ages 7-18, who reside in California's Sacramento, Placer, Yolo and San Joaquin Counties. Children eligible for the service typically live in single-parent homes and generally are considered to be at-risk. BBBS carefully screens and trains volunteers, known as big brothers or big sisters, and matches them with the children for long-term, professionally supported, relationships. Programs are either site-based or community-based. Children and mentors meet from 1 to 6 hours a week, depending on the program. Children matched with a mentortypically do better in school, are less likely to become involved in violent behavior, and get along better with peers and family members. They also are less likely than peers to begin using drugs.