Ability to publish a map in a public directory
I'm following up onto http://mindmup.uservoice.com/forums/200447-what-should-we-focus-on-next-/suggestions/3800017-searching-browsing-through-public-mind-maps
It would be great to be able to share publicly some maps. In the same way a drive document can be private, shared (anyone with the link), or public (searcheable and browseable).
When a map is made publicly available, a title and tags could be added, along with other metadata (author nick name, last modif date, creation date).
The public directory(ies) would be browseable by tags, last modification date, title, or words within the maps. Ideally the directory would be indexed by search engines, and maps would be indexed along.
E.g. 'impact map mindmup" on google might return contributed samples impact maps made public on this directory.

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Guillaume Berche commented
See similar template library in mindmeister http://www.mindmeister.com/blog/2011/12/09/introducing-map-templates/
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Guillaume Berche commented
Sharing maps is particularly interesting for templates or samples of innovating practices.
As a temporary workaround for a built-in feature within MindMup, please use the following google spreadsheet in which the community can add/rate/search public maps and even be notified by email of modifications made by the community:
https://docs.google.com/spreadsheet/ccc?key=0AvRQz82RzSUndElUd19XUHdIbGtrUXVMNEZ1YlRNQlE&usp=sharing