Is PlayStation Network (PSN) free?

It is important to highlight the distinction between the PSN and PS Plus since one of them is a free service while the other requires a paid subscription.

PlayStation Plus gets three free games- EA Sports UFC 4 to Planet Coaster

PlayStation Plus annual membership now costs $60 a year, not $50

Sony's revamped PlayStation Plus is a confusing mess - Protocol

PSA: New PlayStation Plus Tiers Available Today, Upgrading Converts To Yearly Plan Automatically - Game Informer

Buy PlayStation Plus subscription, PS Plus cheap

PSA: Sony Giving Away $10 Credit To Some PlayStation Plus Members - GameSpot

PlayStation Plus Extra and Premium now have seven-day free trial

PlayStation Plus Extra and Premium now have seven-day free trial

Open a new PlayStation credit card, get a free year of PlayStation Plus and $50 on PSN - Polygon

What is PlayStation Plus and why do I need it?

PlayStation Plus Is Changing. Here's What You Need to Know