I ran across this article online today in American Dog magazine and thought I would pass it along. With the state of our economy no one is immune to hardship and "downsizing" it seems. You never know when you will find youself in a tough financial spot and need vet care for your beloved Dog. For some people I am sure insurance isn't always an option either. If you know of other resources please add them to the comments...
Resources: Veterinary Bills Financial Assistance
Do you Need Help with Veterinary Bills to Save your Pet's Life?
Here is a list of organizations that provide financial assistance. Visit their Web site to see if you qualify and meet their criteria.
Many local humane societies offer low cost veterinary services and breed rescue groups may be able to offer assistance with medical bills. You can also check with national animal welfare organizations for additional information.