What’s the use of Facebook?

I am half way through watching The Social Network (with my daughter…!) and can already see why it has won awards. So far the most interesting observation is that Mark Zuckerberg aimed to replicate online the sorts of social things that people do in real life. In the film this arises from a conversation with his friend, who is wondering who is in a relationship with whom, from which Zuckerberg adds the ‘In a relationship’ feature to his programme.

So what are the kind of ‘human relating’ things that we can use Facebook for? Here are examples of how I have used Facebook in the last few weeks. What about you?