--- a/irc.rst	Mon Jun 08 09:41:14 2009 +0300
+++ b/irc.rst	Wed Jun 24 21:20:03 2009 +0300
@@ -2,15 +2,97 @@
 
 * What are IRC client for emacs?
 
+Most preferred is erc - it is powerful and comes with Emacs since 22.1
+version.
+
 See: http://www.emacswiki.org/emacs/InternetRelayChat.
 
- * erc, see:
+ * erc
    http://www.emacswiki.org/emacs/ERC
 
+ * rcirc
+   http://www.emacswiki.org/emacs/rcirc
+
  * ZenIRC, see:
    http://www.emacswiki.org/emacs/ZenIRC
 
-* How register on freenode?
+* Channel modes.
+
+** Invite-Only channel.
+
+An Invite-Only channel can only be joined if you are invited by one of its
+channel operators.
+
+To make your channel invite-only:
+
+  irc> /mode #channel +i
+
+To invite users to the channel:
+
+  irc> /invite user #channel
+
+** Private channels.
+
+Private channels turn up normally in the channels list. People can see you are
+on a private channel somewhere, but they can never find out on -which- private
+channel you are unless they search all (private) channels by brute force.
+
+To make your channel private:
+
+  irc> /mode #channel +p
+
+** Secret channels.
+
+Secret channels do not show up in a channels list and you cannot find out its
+topic unless you join it. If you are on a secret channel, someone who is not
+on the same channel can't see that you are there.
+
+To make your channel secret:
+
+  irc> /mode #channel +s
+
+* How make chanal for private discuss?
+
+Create new channel and set it invite-only and invite all you need. Or make
+password protected channel.
 
-Go to http://freenode.net/faq.shtml#nicksetup.
+Create new channel (by joining to non existed one) with password:
+
+  irc> /join #<channel> <password>
+
+Another people join same:
+
+  irc> /join #<channel> <password>
+
+Or join without password and setup it late:
+
+  irc> /join #<channel>
+  irc> /mode +k <password>
+
+* Freenode.
+
+** How register on freenode?
 
+  irc> /msg nickserv register <your-password> <your-email>
+...get mail, make mail instructions...
+  irc> /msg nickserv set hidemail on
+
+** Adding alternative nick.
+
+After nick setup change nick:
+
+  irc> /nick foo_
+  irc> /msg nickserv group
+
+See
+
+  http://freenode.net/faq.shtml#registering
+  http://freenode.net/faq.shtml#nicksetup.
+
+* Getting help
+
+  /help
+  /msg nickserv help
+  /msg chanserv help
+
+/msg chanserv access #icfp-contest list