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http://www.cenc.org.cn/en/

Provides information on the Chineese cooperation in European global navigation space systems.

http://europa.eu.int/comm/dgs/energy_transport/galileo/index_en.htm

Features overview of the GALILEO global satellite navigation system by the European Commission. Includes functions, performances and utilization areas.

Galileo Industries

http://www.galileo-industries.net/

Provided overview and news about the GALILEO satellite navigation system being constructed in Europe.

Galileo Joint Undertaking

http://www.galileoju.com/

Offers general system information and industry related material by the consortium building the system.

Global Positioning System

http://leonardo.jpl.nasa.gov/msl/Programs/gps.html

Provides overview of the GPS program and launches.

GLONASS

http://www.glonass-center.ru/frame_e.html

Provides overview of the Russian satellite navigation system. Includes orbital data, user information and constellation history.

GPS Applications Exchange

http://gpshome.ssc.nasa.gov/

Offer global overview of GPS applications and users communities.

GPS World

http://www.gpsworld.com/gpsworld/

Magazine offering on-line news and updated reference information in space and ground GNSS systems.

iNavSat

http://www.inavsat.com/

News and background information by a consortium set up to operate the Galileo satellite navigation system.

Interagency GPS Executive Board (IGEB)

http://www.igeb.gov/

Provides news and facts from the U.S. government board that manages the Global Position System (GPS).

NAVSTAR GPS Joint Program Office

http://gps.losangeles.af.mil/

United States joint-military-service, multi-national organization responsible for the global positioning constellation, operational control segment, and user equipment. Technical and programmatic information.

The European Space Agency: Satellite Navigation

http://www.esa.int/export/esaSA/navigation.html

Includes overview of satellite navigation and presentation of the European satellite navigation systems Galileo and EGNOS.

United States Mission to the European Union: Galil

http://www.useu.be/Galileo/index.htm

Offers overview of USA's involvement in the Galileo program.

What is Galileo?

http://www.esa.int/export/esaSA/GGGMX650NDC_navigation_0.html

Introduction to the Galileo system provided by the European Space Agency.