JustCite is a legal citator and search engine for researching UK statutes and cases. It cross-references UK cases, legislation, and secondary commentaries to allow researchers to find related materials. It works very similarly like the Westlaw Keycite and Quicklaw Note Up service. Today, JustCite launched the "Precedent Map" feature, allowing the visualizing of relationships between cases.
In these maps, coloured arrows are used to distinguish positive, negative, and neutral judicial treatment. The size of the case display in these maps indicate the commonality between the main case and the "related case". The bigger the display, the more closely related the two cases. For more information about JustCite and the new precedent map, please check it out here.