A couple friends of mine started an organization for connecting "creative professional" volunteers with animal welfare organizations. It's called creativePAW. Here's the quick blurb from their web site:
We're talented, we're creative, and we love animals! creativePAW is a network of creative professionals who are willing to work pro bono for animal welfare organizations and causes.
Every day, thousands of healthy cats and dogs are killed because no one wants them; in fact, a homeless dog or cat is euthanized every eight seconds in the U.S. Our mission is to use our creative gifts to stop the killing and to promote the kind treatment of animals. Animal welfare organizations always need help with marketing, publicity, education, and fundraising — and that’s where we come in.
So what does this mean? If you are an artist, web designer, musician, photographer, writer, editor, etc. and would like to do some volunteer work for an animal welfare organization, you can register your skills on this web site. Then, the animal welfare organizations will be able to search the database to find appropriately skilled people for projects. Often these animal welfare organizations have small budgets, so they can't afford to pay for the creative professionals for their web sites or advertising projects.
If you have the skills and are interested in doing some volunteer work in your spare time (perhaps to build up your resume or portfolio or just to do a good deed for animal welfare), check out the site. There's no obligation to say yes to any request.
Last I heard, the network has over 300 creative professional members and already has some success stories.