I do what Skysue said. Every evening I write an email "blog" about our day. All of my families love these emails and I have been thanked many times for them. I don't do it individually for each child as it would take me an hour, but rather it is one email addressed to all families with nothing personal in it. This way parents also get to know the other kids a bit through hearing about them in the emails. I think it makes everyone feel more connected.