PlayStation Network went down this morning according to hundreds of reports and Sony itself.
PlayStation's servers enable gamers to connect to the internet and PSN facilitates an additional service, PlayStation Plus. This allows gamers to play with others online.
It also runs the PlayStation Store where users can buy games and PlayStation Direct where consoles and accessories can be ordered. Website Down Detector reported that more than 700 users reported issues with accessing the network between 7-8am this morning.