Great Britain Historical GIS Project - Creating a major GIS that will contain the changing boundaries of all the major administrative and statistical reporting areas of Great Britain.
Mapping Medieval Townscapes - Digital atlas of the new towns established in Wales and England during the reign of King Edward I. Includes essays and detailed maps plus a searchable GIS database.
Medieval Settlement Research Group - Archaeologists, geographers, and historians using their disciplines co-operatively in order to advance knowledge of settlements of all kinds.