[praseodym]

Because I had to look this up: ‘SNS’ is an abbreviation for Social Networking Service that is mostly used in Japan.

[sti320a]

I didn't know the 'SNS' is only used in Japan. I need to say 'Social Networking Service' without abbreviating. Thank you for pointing out.

[glandium]

It's also used at least in Korea, but it's uncommon in the west.