https://whispersystems.org/signal/privacy/
ERResearch's bookmarks 08/15/2016
http://support.whispersystems.org/hc/en-us/articles/213190647-Group-SMS
http://www.theverge.com/2013/4/12/4216838/facebook-updates-messenger-adds-chat-heads
ERResearch's bookmarks 08/14/2016
http://www.forbes.com/sites/tomiogeron/2012/12/04/facebook-messenger-takes-on-sms-with-no-account-needed/#5a3a9099703c
http://support.whispersystems.org/hc/en-us/articles/212535528-Who-can-I-message-
https://www.viber.com/en/security-overview
https://techcrunch.com/2016/04/20/viber-defends-new-end-to-end-encryption-protocol-against-criticism/
http://thenextweb.com/insider/2016/04/19/viber-says-its-now-encrypted-but-wont-tell-us-how-secure-chats-are/#gref
https://www.viber.com/en/privacypolicy.html
https://support.viber.com/customer/en/portal/articles/1334452-create-a-backup-file-of-your-messages?b_id=3838#.V7Dce_m7iko
https://www.quora.com/What-is-WhatsApps-server-architecture
http://www.erlang-factory.com/upload/presentations/558/efsf2012-whatsapp-scaling.pdf
http://digitalperiod.com/explore-whatsapp-clock-sign-and-tick/
https://oflisback.github.io/telegram-stalking/
ERResearch's bookmarks 08/12/2016
https://www.youtube.com/watch?v=L93ojJ7yKsE
http://hothardware.com/news/whatsapp-desktop-app-os-x-and-windows
http://security.stackexchange.com/questions/119552/how-does-end-to-end-encryption-work-with-whatsapp-web
http://www.bbc.com/news/technology-33718318
http://newsroom.fb.com/news/2016/07/messenger-starts-testing-end-to-end-encryption-with-secret-conversations/
https://techcrunch.com/2016/07/08/messenger-adds-end-to-end-encryption/
ERResearch's bookmarks 08/11/2016
http://www.recode.net/2015/12/21/11621610/is-your-messaging-app-encrypted
ERResearch's bookmarks 08/10/2016
https://whispersystems.org/blog/signal-desktop/
https://newsthatmoves.org/en/about-us/
ERResearch's bookmarks 08/08/2016
https://www.ericsson.com/res/thecompany/docs/press/backgrounders/press-backgrounder-refugee-reconnection.pdf
chrome-extension://oemmndcbldboiebfnladdacbdfmadadm/http://regionalmms.org/fileadmin/content/rmms_publications/RMMS%20Briefing%20paper%202_Social%20Media%20in%20Mixed%20MigrationUPLOAD.pdf