Linker:     PRODUSENT SIDER Topcon Positioning Systems  http://www.topconpositioning.com Topcon Europe  http://www.topconeurope.com Topcon At Work  http://www.topconatwork.eu Mettenmeier GmbH  http://www.robust-pc.de/en/ Garmin  http://www.garmin.com/no/   GNSS KNIT (GLONASS)  http://www.glonass-center.ru JOINT PROGRAM OFFICE (GPS)  http://gps.losangeles.af.mil GPS WORLD http://www.gpsworld.com/gpsworld ORGANISASJONER EUROPEAN SPACE AGENCY (Engelsk)  http://www.esa.int EUROPEAN SPACE AGENCY (Norsk)  http://www.esa.int/esaCP/Norway.html GALILEO (Info fra EU)  http://ec.europa.eu/enterprise/policies/satnav/galileo/index_en.htm IGS  http://igscb.jpl.nasa.gov INTERNATIONAL EARTH ROTATION SERVICE  http://www.iers.org ETTERPROSESSERING Scripps Coordinate Update Tool (SCOUT)  http://sopac.ucsd.edu/cgi-bin/SCOUT.cgi Online GPS Processing Service (AUSPOS)  http://www.ga.gov.au/geodesy/sgc/wwwgps TEQC - The Toolkit for GPS/GLONASS Data  http://facility.unavco.org/software/teqc/teqc.html UTDANNING UMB  http://www.umb.no NTNU  http://www.geomatikk.ntnu.no DIVERSE NORSK INTERNETTPORTALEN GEONORGE  http://www.geonorge.no FORENINGEN GEOFORUM  http://www.geoforum.no STATENS KARTVERK  http://www.statkart.no/IPS IONOSFÆRE SOHO  http://sohowww.nascom.nasa.gov NOAA  http://www.sec.noaa.gov SPACEWEATHER  http://www.spaceweather.com SOLAR PHYSICS  http://www.lmsal.com/solarsites.html PROGRAMVARE NORKART  http://www.nkgs.no POWEL GEMINI  http://www.powelgemini.no PENMAP http://www.penmap.com SBG http://www.sbg.se VIKER DATA AB http://www.viker.se TUTORIALS DANA  http://www.colorado.edu/geography/gcraft/notes/gps/gps_f.html THE AEROSPACE CORPORATION  http://www.aero.org DIVERSE NMEA http://vancouver-webpages.com/peter Canadian Space Geodesy Forum  http://gauss.gge.unb.ca/CANSPACE.html OMNISTAR  http://www.omnistar.com