The Quad-County Amateur Radio Club

http://www.dxsummit.fi/DxSpots.aspx

http://www.ng3k.com/

http://www.qth.com/ka9fox/links_contest_info.shtml

http://dx.qsl.net/propagation/greyline.html

http://www.dxawards.com/DXAwardDir/APL1005.htm

http://www.dxzone.com/

https://secure.clublog.org/loginform.php

http://www.bitwrap.no/web/index.php?id=buy

http://www.ham-radio.ch/guides/hrd/hrd.html

http://www.arrl.org/instructions

http://www.dxmaps.com/spots/map.php?Lan=E&Frec=14&ML=M&Map=W2L&DXC=N&HF=S&GL=N

http://tycho.usno.navy.mil/what.html

http://www.qsl.net/sm3gsj/index.htm