The PlayStation Network (PSN) is online gaming including media content delivery service. Sony Corporation independently created PSN to maintain its PlayStation 3 (PS3) game console.
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In order be a part of the PlayStation network it would require a user to set up an online account. If you want to enjoy the network then there is no need of subscriptions, if you want to enjoy premium services then you need to subscribe. Signing up for PlayStation network is simple and easy. All you need is unique email address and unique identifier name.