DXwatch.com – A web site intended for amateur radio DX enthusiasts. Their mission is to publish a website which can work as a real DX tool. They try to offer the most advanced webcluster and some DX tools.
Wikipedia Article – Amateur Radio Contesting
AC6V’s Amateur Radio and DX Reference Guide
Andrew Roos ZS1AN – Amateur Radio Contesting FAQ
ARRL On The Air – Numerous resources for operating, tutorials, special event stations
Rick Tavan N6XI – Explaining to his friends what amateur radio contesting is
DX News – On this site you will find information about DX Peditions and IOTA activations
DX Code of Conduct – What you can do to improve DX etiquette