At the beginning of December most of the Windows Live services have changed. One of the surprises here is the new social orientation of Windows Live. I guess that the Network is one of the Microsoft’s moves towards better Internet Presence.
You can read more about Windows Live Services here:
And about the new social features here:
I am already using most of the features.
You can download The Windows Live Essentials here
It includes several applications like Windows Live Writer (One of my favorites), Messenger etc.
I hope this network will gain more popularity soon.