If you share your city or what part of Michigan you are in, there may be people here who work with a GS rescue in your area, who can help you get started volunteering.
Otherwise, please volunteer at your local animal shelter. They need your enthusiasm and passion. Don't ever let anyone tell you one person can't make a difference in saving lives! Last year, I was part of a group of just THREE volunteers who saved over 50 GSDs from a high-kill shelter -- not a rescue, not a well-funded non-profit, just 3 shelter volunteers working their tails off to find homes for good dogs. We got GSDs "no kill" status in a high kill shelter in about half a year--in a shelter with a euthanasia rate around 50% for other breeds.
I would bet your local animal shelter would love to have a volunteer "breed advocate." I do that in my city. I evaluate all the GSDs who come through, exercise them, get pictures, write bios, advertise them, respond to emails from adopters who have questions about them, go to the shelter to do meet and greets, and train other volunteers. I also foster dogs and have an arrangement where the shelter staff all know to call me if a GSD is on the week's euthanasia list. Some days the work is tough -- the injured, sick, abused, and neglected dogs you will see will break your heart...and then occasionally give you a piece of theirs when you help mend them and show them the only kindness they've ever known.
I started out just walking dogs at the shelter. Over time, as I got to know the staff, and they got to know me, they trusted me to do more. Walking dogs is a wonderful way to get started at a shelter -- many volunteers are afraid of large, powerful dogs and won't walk them. We had many volunteers who came for the small dogs, but few for the large dogs.
GSDs get so depressed in shelters. Depression can lead to dogs being put on euthanasia lists. The thing about walking them that's magical is you can see their spirits lift, and the life come back into their eyes after a good long walk (or even run) -- and sometimes that is all it takes for them to turn around. I've had several of "my" dogs at the shelter get adopted within the hour of their walk -- they were still happy and excited when adopters came through, so they made a good impression. Before the walk, those dogs were withdrawn and sad in the back of the kennel--easy for adopters to overlook.
If you start walking dogs at the shelter, you'll gain experience as you see more and more dogs and practice your handling techniques. You'll also get better and better at "reading" different dogs.
Last edited by Magwart; 08-15-2013 at 12:51 AM.