Retronix Ltd                                          www.retronix.com

Component Obsolescence Group         www.cog.org.uk

Datasheet Finder                                  www.alldatasheet.com

The Broker Forum                                www.brokerforum.com

Hong Kong Inventory                           www.hkinventory.com

Anti Counterfeiting Forum                    www.anticounterfeitingforum.org.uk