Volunteer to help with pet adoptions at outlying locations.
Many shelters partner with chain stores such as PETCO, PetSmart to set up temporary adoption locations on certain days of the week. You can help just a few hours a week.
Volunteer your services.
-- Are you a web designer? Offer to help with web site design, newsletter formatting and/or blogs.
-- If you're a digital photographer . . . you don't have to be a professional . . . offer to take photos of adoptable pets and edit those photos for website or print publications.
-- Do you know the fine points of search engine optimization for websites? Then help your shelter or rescue group with the copy and design tips that will help them be found online.
-- If you enjoy writing, offer to write articles for your shelter's website or newsletter. Or use your skills to write captions to describe adoptable pets for newspaper ads. Clever captions and descriptions of pets can create interest for that specific pet.
Offering transportation services, asking your veterinarian to provide discounted services for the local shelter, offering to spay or neuter your neighbor's pet, and more.
Help animals in your community who don't live in the shelter.
Meals on Wheels or other community services providing food for families in need often have pet food banks. Donate pet food to these groups.