USGS: Geo Data - http://edc.usgs.gov/geodata/ FTP File Access. These data files are for use in geographical information systems for analysis and integration with other geospatial data.
Moland - Monitoring Land Use / Cover Dynamics - http://moland.jrc.it/ Project aimed at providing a spatial planning tool that can be used for assessing, monitoring and modelling the development of urban and regional environments.
Institute of Mathematical Geography - http://www-personal.umich.edu/~copyrght/image/ Articles, papers and Solstice, an electronic journal of the interaction between geography and mathematics.
Delft Institute for Earth-Oriented Space Research - http://www.lr.tudelft.nl/live/pagina.jsp?id=e2984c9b-4864-46e0-992f-13ce92f3580b&lang=en Research activities related to processing and analyzing space based Earth observations and modeling/computing the high precision satellite orbits that are often required for that type of analysis. Geodesy is also a research area.
Lawrence Lau's GPS research page - http://www.lawrencelau.net Detail of research into a processing algorithm for deformation monitoring and a brief introduction into GPS technology.