Ok, I'll post the address of a few of them. You just need a Yahoo ID to join the list then you can post to them. If you want to find more, go to the Yahoo Group page http://groups.yahoo.com/ and search for rescue or dog transport. You can also search for the specific states.

TRUCK-N-PAWS http://groups.yahoo.com/group/TRUCK-N-PAWS
RollingRescue http://groups.yahoo.com/group/rollingrescue
Dog Rescue Railroad http://groups.yahoo.com/group/Dog_Rescue_RailRoad