• Skype for Business (#Skype4B)
• Microsoft Teams (#MSTeams) - http://teams.microsoft.com
• Skype
• Google Hangout
• https://appear.in
• Jitsi - https://meet.jit.si (Desktop-Sharing with Chrome AddIn: https://chrome.google.com/webstore/detail/jitsi-meetings/kglhbbefdnlheedjiejgomgmfplipfeb)
• …

• Yammer (see Working Out Loud Communities)
• Microsoft Teams (#MSTeams) - http://teams.microsoft.com
  • Microsoft OneNote - best integrated in Teams
• IBM Connections
• Workplace for Facebook (ask Simon Fogg: http://srjf.blogspot.com/2017/11/invitation-to-be-part-of-wol-circle.html)
• Connectle - https://connectle.mn.co (ask Mara Tolja)
• …

• Microsoft ToDo (for yourself)
• Microsoft Planner (open for your team - best integrated in MS Teams)
• Microsoft OneNote
• Atlassian Trello
• Padlet - https://de.padlet.com/
• Google Docs
• …

also see material