Radio Links

Six Meters
WG7J's Grid Square Mapper - Upload your adif file and watch! Know where the holes are via Google Earth.
G7RAU - LIVE MUF, User Configurable MUF Map
ON4KST - Chats, Maps, Cluster, Propagation Indices
6 Meters Online - News, DX Calendar, 6M Records
DX Sherlock - Maps, Extensive Search Pages
DXSCAPE - Cluster, Great filtering by Band, Continent, Mode or IOTA
DX SUMMIT - Cluster, Search
F5LEN - Cluster, Fast Lookup Resources
W1WC Spots - Fast Lookup Resources
DX CENTRAL - DXCC and CQ Zones 'Heard' Stats
Global Tuners - Listen-in from a different perspective
CQ SIX - 50 MHz DX Information
VHF Operators Database

Fred Fish Memorial Award
Most Wanted Six Meter Grids

Adif Log File Tools
Do you need to manipulate large or small amounts of log files or xfer between programs?
http://www.dxshell.com/adif-master.html
Looking for an easy way to convert old paper logs to adif files with as few keystrokes as possible?
http://www.dxzone.com/cgi-bin/dir/jump2.cgi?ID=20119
Here's a list of logging tools and converters:
http://www.dxzone.com/catalog/Software/Log_Converters/
WG7J's Grid Square Mapper - Upload your adif file and watch! Know where the holes are via Google Earth.
GeLog - ADIF TO KML Converter - Allows great Google Earth Maps of your DX'ing to be made and saved!

Propagation
SolarSoft
Near-Real-Time MUF Map
A Seven Year Study of 50 mHz Sporadic-E Propagation
VHF Propagation Maps
Water Vapor Composite Map
World Wide Tropospheric Ducting Forecasts
HAARP VHF Riometer
Real Time Geomagnetic Development
Ionospheric Total Electron Content Map

Aides
Quickly find your four, six, eight and even ten digit grid square plus distance between two squares
Search Bing and GoogleMaps Side by Side on the Same Page
QTH by Grid, Address or Zip Code
World Amateur Radio Prefix Maps
WAC, CQ, ITU Regions, ITU Zones, Grid Squars & JA Districts
DXers.Info Most Excellent DX Google Maps
Free Great Circle Maps
RadioCQ Grid Locator. - Load a grid or point and click