Technology Websites:
- The 3rd Generation Partnership Project (3GPP) 3gpp.org
- The 3rd Generation Partnership Project 2 (3GPP2) 3gpp2.org
- GSM World gsmworld.com
- GSMA Mobile Broadband gsmamobilebroadband.com
- Femto Forum femtoforum.com
- LTE World lteworld.org
- Think Femtocell  thinkfemtocell.com
- WiMAX Forum wimaxforum.org
- UMTS Forum http://www.umts-forum.org/
- UMTS World umtsworld.com    

Telecommunication Organizations:
- Telecommunications Industry Association (TIA)
- International Telecommunications Union (ITU)
- The European Telecommunications Standards Institute (ETSI)
- The Internet Engineering Task Force (IETF)
- The Fixed-Mobile Convergence alliance (FMCA)
- Institute of Electrical and Electronics Engineers (IEEE)
- Open Mobile Alliance (OMA)

Network Simulators:
- The ns2 Network Simulator isi.edu/nsnam/ns
- The ns3 Network Simulator nsnam.org
- OPNET opnet.com
- OMNET++ omnetpp.org
- NetSim  tetcos.com/software