In the light of two very interesting blog posts, one of Erica Hagen from Ground Truth and one of [Gwilym Eades] (http://place-memes.blogspot.de/2015/05/the-hubris-of-proactive-disaster-mapping.html) lecturer geography in the Royal Holloway University of London, in the aftermath of the Nepal earthquake; I would like to share with you some of my thoughts.

Types of mapping activities

First of all I would like to share with you a table which I created and showed last year during GeOng in France, at the Missing Maps launch in London and at the HOT summit in Washington. Every time this table lead to interesting discussions afterwards.

The table shows the existence of four different ways of OpenStreetMap-mapping:

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