I'm referring back to AngelD's second post on first page, where she asks why we should even take photos on our phones and also Franbern's second post, also on first page. I also think people take far too many photos and then want to share them with everyone. I keep a few photos on my phone - mainly for own enjoyment and only show them to others if asked.
A good friend sometimes sends me printed photos of her grandchildren. I then have to wonder what to do with them - do I just throw them out after looking at them, which feels a bit rude, but I'm really not that interested in other people's grandchildren!
AngelD - you can keep the people dear to you in the loop by writing about your grandchild and describing how they are developing - first smile, teeth etc, without having to send photos. As Franbern says, most babies look very similar especially when very young. Later on, you may get permission to send photos to certain relatives or friends, but as others have said, you never know who or where they will end up.
My sister-in-law uses Facebook a lot and posts all kinds of family news. She is connected to a friend of mine who is also a Facebook fan (but not very tech-savvy, so I don't know what her privacy settings are), so sometimes I get family news from her. I find it slightly disconcerting to hear her commenting on family news. I'm not on Facebook at all, but it would make me wary of sending photos to sister-in-law as they would probably end up there anyway.