An interesting question. I posted a collage of nine photos showing about 20 kids the other day. I asked them first, and in most cases their parents or some adult was accompanying them and there were no objections or questions.

Still, I felt uneasy about posting that collage and I intended to leave it up only for a couple of days, in fact, I'm removing it in a few minutes. I had almost expected someone to ask if I had their permission.

Privacy will, and is, taking a beating right now because of cell phones with built-in cameras where people do not know if a photo is being taken. And people are taking photos without permission all the time. I suppose though, that because photos are becoming so prolific, that alone provides some sort of anonymity because it is very difficult for any one photograph to gain any stature when they are surrounded by billions of others.