I know GSD rescues are probably full to their limit, but they're there to help, so...
http://www.agsra.com/

Regional Contacts:
http://www.agsra.com/regional_contacts.htm

And there should be a load of GSD breed rescues.
http://search.yahoo.com/search?p=GSD...gle=1&ei=UTF-8

Hope that suffices for now!

Edited to add: I typed in New Hampshire GSD Rescue and got this
http://www.gshepherd.com/rescueDogs/...scue_links.htm