olemus
elektrooniline sõnumite saatmine,
eelkõige: lühikeste tekstsõnumite vahetus
laias tähenduses hõlmab ka meili jm

Collins English Dictionary:
the sending of written or spoken messages using a computer or another electronic device such as a mobile phone

ülevaateid
http://etutorials.org/Mobile+devices/mobile+wireless+design/Part+One+Introduction+to+the+Mobile+and+Wireless+Landscape/Chapter+5+Mobile+and+Wireless+Messaging/Types+of+Messaging/

https://en.wikipedia.org/wiki/Text_messaging

https://en.wikipedia.org/wiki/Instant_messaging

https://simpletexting.com/history-of-messaging/

vt ka
- elektronsõnumivahetus
- kiirmeil
- koondpost
- SMS
- sõnumivahetus
- veebiside