Links

Hydrographic Agencies:

International Hydographic Organization Monaco: International Hydrographic Organization
USA: NGA (Opnast í nýjum vafraglugga)  & NOAA
UK: UK Hydrographic Office
Danmark: Geodatastyrelsen
Finland: Finnish Transport Agency 
Canada: Canadian Hydrographic Service 
Norway: Statens kartverk
Sweden: Sjöfartsverket
Germany: Das Bundesamt für Seeschiffahrt und Hydrographie

Icelandic sites:
Marine & Freshwater Research Institute
National Land survey of Iceland
The Icelandic Road and Coastal Administration (IRCA)
Icelandic Transport Authority 

Other sites

CARIS

HYPACK, Inc

IC-ENC, International Centre for ENCs
Primar Stavanger
Naval Oceanographic Office
International Maritime Organization