Spatial organisation of information objects on a two or three dimensional plane or space has the advantage of revealing the connections between objects easily by spatial proximity. A user may easily understand, remember and, given an adequate User Interface, change the positions and the visual relationships between information objects. If a group of users has access to the same information plane or space the problem arises that conflicts may occur regarding the positioning, the creation and deletion of objects. In this article we present solution strategies for conflicts concerning collaborative spatial information organization. We present interaction-based and automatic conflict-dissolving procedures in order to realize a version control system for efficient collaborative spatial information organization.