The following references are pointers to additional information that is relevant to SELinux and Red Hat Enterprise Linux but beyond the scope of this guide.
Tutorials and Help
https://fedora.redhat.com/docs/selinux-apache-fc3/
https://www.coker.com.au/selinux/talks/ibmtu-2004/
https://sourceforge.net/docman/display_doc.php?docid=21959&group_id=21266
https://kbase.redhat.com/
General Information
https://www.nsa.gov/selinux/
https://www.nsa.gov/selinux/info/faq.cfm
https://fedora.redhat.com/docs/selinux-faq-fc3/
https://www.oreilly.com/catalog/selinux/
Technology
https://www.tresys.com/selinux/obj_perms_help.html
https://www.nsa.gov/selinux/papers/slinux-abs.cfm
https://www.nsa.gov/selinux/papers/module-abs.cfm
https://www.nsa.gov/selinux/papers/policy-abs.cfm
Community
https://selinux.sourceforge.net
irc.freenode.net, #rhel-selinux
History
https://www.cs.utah.edu/flux/fluke/html/flask.html
https://www.cs.utah.edu/flux/fluke/html/index.html