BM Day Gift

potatohead

This is the first mother's day after having DD.  I read that birthmother's day is Saturday.  We don't have DD's BM's home address yet, so we can't send her flowers.  We do, however, have her email.  I was thinking of sending an e-card for Amazon.  Appropriate or not?  How many of you send your child's BM a gift for birthmother's day?  Is it appreciated or something that is bitter sweet?  

We already sent the monthly card with updates and tons of pictures.