Mind maps can be used to structure ideas and visualise connections. They can be created collaboratively and thus help to develop a new topic.

Tools with which a mind map can be created:

The Collaboard from the Academic Cloud offers the Mind Map template and is GDPR-compliant.

Flinga - kept simple and therefore very intuitive(guide)

Miro lite can be used as a whiteboard, pinboard or mind map and also works without registration. However, boards then expire after 24 hours.