The interesting web sites shown under LINKS are not necessarily formally endorsed by ICS, and neither is their stratigraphic content and context.
Stratigraphy.net aims to provide free and open access to geoscientific information and data with special emphasis on the disciplines stratigraphy, paleontology and sedimentology.
CHRONOS - Interactive Chronostratigraphy and Stratigraphic Databases
NORGES - Network of Offshore Records of Geology and Stratigraphy
NEPTUNE - a stratigraphic information system about Cenozoic marine microfossils biogeochronology of the DSDP and ODP.
GEOWHEN Database aims to reconcile the international stratigraphic standards with many of the regional and archaic naming schemes that appear in the literature