Arlington County Department of Parks, Recreation and Community Resources, clean up Four Mile Run stream and Bluemont, Glencarlyn and Barcroft parks, wear work gloves and waterproof boots, 9 a.m.-noon March 8. 703-525-0168.

Arlington County Library, greeters, computer coaches and CyberCenter aides. 703-228-5260 or 703-228-7762.

Arlington Learning in Retirement Institute, instructors for college-level courses. 703-993-3152.

American Cancer Society, deliver daffodils to businesses and residences March 11. 703-937-1928. Also, volunteers for Ambassadors and Allies Program to inform communities about colorectal cancer prevention. 800-ACS-2345 or www.cancer.org.

Literacy Council of Northern Virginia, collecting donated books from Safeway stores. Donations needed: new or gently used books, accepted at Arlington and Alexandria Safeway stores through Monday. 703-575-7900 or www.lcnv.org.

The Naomi Project, English- and Spanish-speaking mentors for high-risk pregnant women. Training begins March 20. 703-860-2633 or http://naomiproject.homestead.com.

Taste of Arlington, setup, cleanup, tickets sales, ice runners, public relations and more, event May 18. 703-841-7768, Ext. 240.

For information on the following volunteer opportunities, call the Arlington County Volunteer Office at 703-228-1760:

Arlington Street People's Assistance Network, computer technician to add memory, insert network cards, work on hardware and some software applications.

Arlington Food Assistance Center, treasurer, six to eight hours a week.

Arlington Red Cross, daytime help. Orientation: 7-9 p.m. Wednesday.

WPFW public radio, winter membership drive, weekdays, evenings and weekends through Feb. 28.

The Residential Program Center, clerical assistance to help with front-desk monitors, in the clothing boutique and with building maintenance.

Arlington-Alexandria Coalition for the Homeless Adopt-a-Family Program, individuals or organizations to build supportive relationships with families in need, through direct financial support, household necessities, school supplies, clothing and identifying community resources.

Arlington County Department of Parks, Recreation and Community Resources, senior adult travel leaders. Training provided.

Clarendon Alliance, filing, answering phones, checking correspondence and more.

Cyber Seniors/Cyber Teens, Spanish-speaking computer teachers for program using Spanish curriculum.

Northern Virginia AIDS Ministry, volunteers to take clients to medical appointments, mentors and companions for children, office assistance, health educators and dinner party hosts.

Woodbine Rehabilitation and Healthcare Center, visit residents, help with a gift cart and happy hour.

Reach for Tomorrow, team leaders to help at-risk youth, supervise eighth-grade students on week-long summer trip, track grades and attendance. Training and orientation provided.

Services for Visually Impaired, assist the blind and visually impaired.

-- Sarah Lane

Looking for volunteer opportunities? These groups need volunteer help for a day, a week or on a regular basis. Nonprofit groups in need of volunteers should send notices to Volunteers, The Washington Post, 526 King St., Suite 515, Alexandria, Va. 22314. Notices also may be faxed to 703-518-3001 or e-mailed to alexextra@washpost.com. The list will be published on a space-available basis.