https://www.radiodx.com/introduction-to-dxing/introduction-to-mw-dxing/
https://swling.com/blog/tag/mw-dx/
https://www.dxing.com/amband.htm
https://www.dxcentralonline.com/am-dx-links
https://wiki.radioreference.com/index.php/MW_DXing_and_Broadcasting
https://www.bamlog.com/
Early Radio History
https://www.angelfire.com/wi/dxmidamerica/