Colin Henderson's Library tagged "walled gardens" →  View Popular, Search in Google

Now, there's a big problem with Facebook's move. The endgame of competitive dynamics in this space is straightforward: the least evil, most open platform - by necessity - wins. Walled gardens lose - hard, fast, and decisively. That's a simple, inevitable outcome of network economics - and no amount of artificial competition, a la blocking tactics, can change it.