PlayStation network is always free.

Free Radio - network - was created in 2012.

A network which is always capable of connecting a free input to a free output, regardless of the connections already established across the network, is said to be non-blocking network.

A network that is always capable of connecting a free input to a free output, but which may require existing connections to be rearranged in order to do so, is called rearrange-able non-blocking network.

You can try Barracuda Networks. The rate will depend on the capacity and scale of your network.

The Playstation Network does not charge a fee