Food and Friends, a nonprofit HIV/AIDS service organization, will hold volunteer orientation at 10 a.m. Saturday and at 6:30 p.m. Oct. 20. Call 202-863-1843.

Prince George's Department of Family Services, Aging Services Division, seeks volunteers to visit senior citizens in nursing homes and to advocate on their behalf. Volunteers will participate in the Local Long Term Care Ombudsman Program, which monitors nursing homes for compliance with residents' rights, statutes and care quality and participates in the resident complaint resolution process. Volunteers would be expected to complete a training program and volunteer four hours a week for one year. Experience working in a health care environment is desirable but not necessary. For more information or to volunteer, call 301-699-2684.

PC Seniors, a program designed to help seniors become computer literate, seeks volunteer computer instructors with knowledge of Microsoft Works and IBM-compatible computers. For more information, call Doris Anderson at 301-248-7004.

Byte Back, an organization that provides free computer training to inner-city Washington residents, needs volunteers to teach five 90-minute classes over a five-week period. Classes include Windows 95, Word, Excel, Power Point, Access and the Internet. For more information or to volunteer, e-mail information to volunteer@byteback.org.

The Baptist Senior Adult Ministries of the Metropolitan Area seeks volunteers for Adult Care Centers in Brentwood, Bowie, Greenbelt and at the Thomas House in Washington. Volunteers are needed to lead arts and crafts groups, to be friendly visitors and to assist staff with activities and serving lunch. The hours are 10 a.m. to 5 p.m. Monday through Saturday. For more information, call Daryl Pennington at 202-626-5782.

The Foster Care Transition Program seeks volunteer mentors to help youths who are leaving foster care for independence. Volunteers are needed to help by sharing experiences and expertise as mentors and/or speakers. Volunteers also are needed to collect food, furniture and clothing to get the youths started. For more information or to volunteer, call Catholic Charities at 301-568-9529, Ext. 20.

Jwanzaa Youth Partnership seeks 25 volunteer mentors, age 21 and older, to mentor Largo High School students. On the job training will be provided. For more information, call Clarence Godfrey at 301-805-8041.

Habitat for Humanity, an organization that builds housing for low-income families, seeks a volunteer office assistant to work a few hours a week. For more information, call Barbara Glancy at 301-779-1912.

GUIDE Family Support Center needs computer literate volunteers to teach beginning computer skills to young parents. In addition, the center needs a receptionist and child-care assistants. For more information, call Beatrice Lumpkin at 301-324-9705.

The Retired Volunteer Service Corps of the University of Maryland, College Park, has immediate openings for mature men and women to be volunteers in various departments and offices. Current vacancies are in the Career Center, Concert Office, English Editing for International Graduate Students, Learning Assistance Service, the Writing Center and Art Center. For more information, call Jed Collard at 301-226-4750.

The Children's Rights Council seeks volunteer office assistants to answer telephones, fill mail orders and help with data entry, filing, copying and faxing. For more information, call David Levy at 202-547-6227.

The Silver Hill Volunteer Fire Department seeks volunteers interested in becoming firefighters and EMS care providers. Training, uniforms and benefits are provided. For more information or to obtain an application, call 202-310-3904.

If you would like to volunteer, please contact the agencies directly. If you would like to submit a notice for Volunteers, fax to 301-952-1397, e-mail to pgextra@washpost.com or write to Volunteers, Prince George's Extra, The Washington Post, 14402 Old Mill Rd., Suite 201, Upper Marlboro, Md. 20772.