How do I get another list of voters?
Vote Forward doesn't send lists, but if you have an account and log in, you'll find the list of voters you "adopted" on your dashboard, and you can adopt another batch of voters once you mark your first batch of letters "prepared."
To log in to your account, visit https://votefwd.org, and click the white "Log in" button at top right. On the next screen, enter your email address and the password you created. There's a password reset if you need it.