Best Social Network: Your Family

There are millions of people absorbed in the latest social red. In these social reds they express their ideas and feelings and they wait to see the ideas and feelings of other users. They are many social reds, but you know what?, There is one that you should absorb yourself in for real. The best of all, the closest one to you, the one you can touch and feel and that you don´t even need electronic devices to be connected... Can you guess what it is?