internet messengers - SERP Analysis

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

https://www.pcmag.com/picks/best-secure-messaging-apps

https://www.rocket.chat/blog/instant-messaging-platforms

https://trillian.im/free-instant-messaging/

https://signal.org/

https://getsession.org/

https://explodingtopics.com/blog/messaging-apps-stats

https://www.reddit.com/r/linux/comments/1dwmsk7/what_opensource_messenger_do_you_use/

https://pumble.com/blog/best-instant-messaging-apps-for-business/

https://trillian.im/