Relevant Links

Asia-Pacific Regional Space Agency Forum (APRSAF):: http://www.aprsaf.org
Civil Global Positioning System Service Interface Committee (CGSIC):: http://www.navcen.uscg.gov/cgsic/
European Space Agency - Navigation (ESA):: http://www.esa.int/esaNA
Geo-Informatics and Space Technology Development Agency (GISTDA):: http://theos.gistda.or.th/home_e.html
GLObal NAvigation Satellite System (GLONASS):: http://www.glonass-ianc.rsa.ru/pls/htmldb/f?p=202:1
International Committee on GNSS (ICG):: http://www.oosa.unvienna.org/oosa/en/SAP/gnss/icg.html
International GNSS Service (IGS):: http://igscb.jpl.nasa.gov
JAXA Quasi-Zenith Satellites sysytem (JAXA QZSS):: http://www.jaxa.jp/projects/sat/qzss/index_e.html
Satellite Positioning Reserch and Apllication Center (SPAC):: http://www.eiseisokui.or.jp/en/