The present invention relates to a user interface, data structure and method to facilitate management and/or access to data, such as by grouping graphical representations of the data in an image space relative to cluster indicators. A given graphical representation for selected data (e.g., a graphical object) can be associated with a corresponding cluster indicator based on its proximity to the cluster indicator. Thus, cluster membership can be changed, in accordance with an aspect of the present invention, by moving graphical objects relative to the cluster indicators.