3-lib

 http://3lib.ukonline.co.uk/ Online psion magazine. Also covers Palm OS.

All About ER6

 http://www.allabouter6.com/ Guide to Symbian Communicators, Mediaphones and Smartphones. Includes Nokia 9210 and 9290.

AMCI Wireless

 http://www.nexterna.com/ A solution provider and system integrator for wireless data communications systems.

Brand Communications Ltd

 http://www.brandcomms.com Brand are global leaders in mobile data and remote access solutions for all environments including ISDN, PSTN, Fixed Lines, Satellite, HSCSD, GPRS and GSM.

CDMA Development Group

 http://www.cdg.org Official site of CDMA; Provides information on CDMA news, applications, and the technology.

Cyplex Communications Pty Ltd

 http://www.cyplex.com.au Telemetry specialists using GSM/SMS/GPRS, Mobitex, DataTac and satellite networks for remote control and data acquisition including meter reading, vending, security and SCADA applications.

The EPOC F.A.Q.

 http://silvester.org.uk A collection of common problems and solutions encountered on Psion EPOC devices.

Euro-wireless.org

 http://www.euro-wireless.org A very early and well established site for mobile and wireless professionals across the globe.

FOX POP

 http://www.foxpop.ndirect.co.uk/ Palmtop information with an EPOC slant. Articles, hints, user contributed information and news.

Hungarian Psion Users Page

 http://psion.tolna.net/ Psion s3a/c, s5 page in English and Hungarian, links, programs.

MobileWay

 http://www.mobileway.com MobileWay's mission is to enable mobile value added services that will benefit Content Providers, wireless network operators and mobile phone users world-wide

Mobility by Design

 http://www.mobilitybydesign.com provides network hardware for in-building and building-to-building wireless data networks, as well as mobile communication devices.

My-Communicator.com

 http://My-Communicator.com Source of information concerning Nokia Communicators 9210, 9290, 9110 and 9000: news, reviews, downloads, tips&tricks, faq, and discussion groups. Needs IE 5+ or NN 6+.

nedrichards.com Psion

 http://www.nedrichards.com/psion.htm An overview and beginners guide for Psion's. Includes tips on how to get around the PsiWin program.

Novarra - Wireless Internet

 http://www.novarra.com Innovator of Adaptive Content Delivery - we bridge the gap between the internet and wireless handheld devices enabling mobile professionals to have real-time productive access to the Internet.