ELI5: Explain Like I'm 5

Windows Live Groups

Windows live groups are like you and your friends putting all of your toys in a big toy box and sharing them. But instead of sharing toys, you share things like pictures, documents, and messaging with your friends in a special online place. Think of it like a treehouse or a secret clubhouse, but on the internet. You can also decide who gets to come in and play with your toys or see your things so it's like having your own secret garden that's just for you and your closest friends.