Mailing lists

[null]

Greetings,
 I was wondering how people are able to join any of the mailing lists.
A trip to:
http://www.freebsd.org/support.html#mailing-list
reveals that one is able to Search or Browse the mailing lists. But what
puzzles me is how there are any mailing lists at all if one is not able
to *join* them so as to post to them. ;)
Please tell me where I can find the information I need to join one of the
mailing lists.

Thank you for all your time and consideration in this matter.

Sincerely,
 Chris