Taking picture of foster kids?

That seems similar to PA rules. Family member fostered and on her family blog she just blurred out the faces of the FK's. In personal emails sent only to us or one or two people who had met the baby IRL, she would show the photos w/o blurred faces. Now that baby was adopted by baby's aunt, she was able to "repost" all the pictures without blurs and "tagged" her aunt/momma on FB.