You can subscribe to the CICS-L Listserv by sending an e-mail to LISTSERV@LISTSERV.UGA.EDU with the command: SUBSCRIBE CICS-L
You can also register and login at listserv.uga.edu/scripts/wa-UGA.exe?A0=CICS-L>
It contains CICS-related questions and answers going back to February 1996.