1. A computer-implemented system for providing a display of clusters, comprising: a display module to present a plurality of cluster spines in a two-dimensional display, wherein each cluster spine comprises a vector of document clusters; a compass positioned over at least a portion of the clusters of one or more of the spines; a spine label provided for at least one of the cluster spines within the compass and placed around a circumference of the compass; a pinning module to pin one of the spine labels to the compass at a fixed location; a reorientation module to reorient the compass within the display; and the two-dimensional display to display the pinned spine label at the fixed location on the reoriented compass.