Note archive link for fsb mailing list

notes.md

@@ -90,6 +90,10 @@ more examples.  Please add other threads here too.
 * https://twitter.com/kfogel/status/1699104095976423795
 * https://chat.opentechstrategies.com/#narrow/stream/2-general/topic/DOSP/near/172793
 
+# Resources to check
+
+* Free Software Business (fsb) mailing list archives at https://web.archive.org/web/20210000000000\*/http://www.crynwr.com/cgi-bin/ezmlm-cgi/0/
+
 # More people to contact as we're gathering examples
 
 If your name should be on the list below but isn't, please [let us