The Flexus COBOL Tools Page variety of topics of interest to COBOL programmers https://www.flexus.com/
TinyCOBOL Project Computers, Programming, Languages, Cobol - TinyCOBOL Project. The TinyCOBOL Project is a COBOL compiler being actively developed by members of the free software community. https://tiny-cobol.sourceforge.net/
Mainframe, Midrange, & Micro Computers, plus Technical Articles Mainframe, Midrange, & Micro Computers, plus Technical Articles https://www.texasrock.com/