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 - [Groupboard](https://www.groupboard.com) `⊘ Proprietary` - Online whiteboard, audio/video conferencing, screen sharing, shared code editing and optional session recording/playback.
 - [HipChat](https://www.atlassian.com/software/hipchat) `⊘ Proprietary` - A team chat solution with 1:1 chat audio and video, third party integration and more. `PHP/Python`
 - [PrivMX WebMail](https://privmx.com) - an alternative private mail system - web-based, end-to-end encrypted by design, self-hosted, decentralized, uses independent PKI. Easy to install and administrate, freeware, open-source. `PHP`
-  
-## Decentralized Network
-
-- [Synereo](https://www.synereo.com/) - Decentralized network system based on blockchain that allows fast speed and great trust level. ([Source Code](https://github.com/synereo/synereo)) `Scala`  
 
 ## E-books and Integrated Library Systems (ILS)