Links
Here are some of my favorite radio related links
http://www.schmarder.com/radios/loops/index.htm
If you need Litz wire check out my products page
http://www.mindspring.com/~loop_antenna/amloop_calc4.htm
Another link to a great loop calculator by Bruce Carter
More Loop Design info by  Lloyd Butler VK5BR
http://users.tpg.com.au/users/ldbutler/VLF-LFLoopAerial.htm
http://www.vlf.it/
Sharp bunch of guys here!!!  Not afraid to share their VLF knowledge
experience. Electronic experimentation at it's very best.
Plan to spend a day here if you can!!!
http://www.lwca.org/
Longwave Club of America.  This site by John Davis, is well
maintained and comprehensive.
http://www.oldradioworld.de/gollum/
Crystal Radio Heaven !!  Published in German and English.
These free radio enthusiasts, display there meticulous
craftsmanship! Check out the unique radios.
Check out my Litz Wire prices!!!
http://rfcafe.com/
This site is incredible!!
If you can't find what you are looking for with a link from this site...
It either doesn't exist or you woke up in a Twilight Zone episode.