I attended my nephew's high school graduation this past weekend. He and his mother share photos on INSTAGRAM, and said that they can determine who will see the posted photos.
As an old fart who wants to be in the loop for this type of family photo sharing, I am intrigued and have downloaded the free INSTAGRAM app for my iPhone and will start to experiment to see what I think.
I'll let you all know if I like it and will use it or, if not and decide to delete it....
AVB-AMG