Hi Anne! Welcome to Greytalk!
I'm in New Carrollton - and though I'm currently greyless, I volunteered for both GPA-MD and Greyhound Welfare - both are really good groups (as is Greyt Expectations). Just maybe go to some meet & greets with the different groups when you can & see which is a better fit for you. Others probably have more info on the other groups in the area...
Someone has warned you that greyhounds are addictive, haven't they???