A note about UStamp: All registrations go through Dawn at UStamp. She receives your payment and e-mails you an invitation. You accept the invitation to join and create a log in and password, once that is approved (just minutes) then you have access to the site. If you sign up and have not heard anything and it's been hours, please check your spam filter to see if it ended up in there. Sometimes that happens.
Come join me in the fun!