No, sorry, we do not have a foster or adoption network. You can see some of the organizations we have supported with funding on our website. We would suggest searching the Internet or Petfinder.com to see if you have a breed specific or senior dog rescue group in your area. If they are not able to assist you directly, they may be able to provide you with some referrals and advice.
If you belong to any social organizations, such as a church group or club, you might consider asking permission to tell members about your dog or place a poster at your local veterinarian or pet supply store. We would suggest avoiding Craigslist, and definitely do not give your dog away for free. Many unscrupulous people (looking for dogs for research, etc.) use Craigslist to get free dogs.
If you use Facebook, you can also post on the Adopt a Senior Dog Facebook page. And if your dog is black, check out the Black Dog Rescues Facebook page.