Your local animal shelter needs your help.
Animal Shelters and pet rescue organizations in the Washington DC area:

Animal Welfare League of Alexandria
Fairfax Animal Shelter
Feline Foundation of Greater Washington
Frederick County Humane Society
Humane Society of Charles County
Humane Society of Montgomery County, VA
Labrador Retriever Rescue
Richmond SPCA
SPCA of Northern Virginia
Anne Arundel County SPCA
Montgomery County MD Humane Society
Washington Animal Rescue League
Friends of Homeless Animals
Doberman Assistance, Rescue, and Education
Friends of Montgomey County Animals (FMCA)
Devoted to Dogs
Basset Rescue of Old Dominion
Animal Adoption and Rescue Foundation
Maryland SPCA Baltimore
All Breed Rescue and Referral
Animal Advocates of Howard County
Westie Rescue of Greater Washington
Days End Farm Horse Rescue
Calvert County Humane Society
Montgomery County (PA) SPCA
Alley Cat Allies
Golden Retriever Rescue
Maryland, DC, Northern Virginia House Rabbit Society
Northern Virginia Animal League
Alley Cat Rescue
Animal Rescue, Inc.
Pet Rescue.org
MetroPets Online
Partnership for Animal Welfare
American SPCA
Border Collie Rescue
Humane Society of the United States
Progressive Animal Welfare Society
Australian Shepherd Rescue
Akita Rescue Mid Atlantic Coast
Chesapeake Bay Retriever Relief Rescue
Prevent A Litter Coalition
Help The Dogs
Amby's Cat Info Site
Save Our Strays
Friends Of Animals
Pet Lovers Companion
Can We Help You Keep Your Pet?
WESTIEMED
Westie Rescue
Rhodesian Ridgeback Rescue
National Westie Rescue
The Senior Dogs Program
Australian Terrier Rescue