Menu:

Some [almost random] links

Journals:
Journal of Maps is a new inter-disciplinary online, electronic, journal that aims to provide a forum for researchers to publish their maps.

Free Software:
Linux, Free software, Free GIS.org, OSGEO, OSGEO-BR, Geolivre

GIS, Spatial Statistics:
GRASS-GIS, R, GMT, QGIS, GDAL, e-foto, JGRASS, gstat, Shaded Relief

Geo Data:
SRTM-data (USGS), SRTM-data (NASA), GLCF, CBERS-data, SRTM30PLUS

Research Institutes, People:
INPE, spatial-analyst.net, Peter Shary

LaTeX (typesetting):
LaTeX, Kile, JabRef

Speleology (caving):
GPME, Redespeleo Brasil, Survex, Therion