diff --git a/Glob2Chan/config.py b/Glob2Chan/config.py
index 488614f..9ae6827 100644
--- a/Glob2Chan/config.py
+++ b/Glob2Chan/config.py
@@ -44,6 +44,13 @@ Glob2Chan = conf.registerPlugin('Glob2Chan')
 # This is where your configuration variables (if any) should go.  For example:
 # conf.registerGlobalValue(Glob2Chan, 'someConfigVariableName',
 #     registry.Boolean(False, """Help for someConfigVariableName."""))
+conf.registerGlobalValue(Glob2Chan, 'nowelcome', registry.String('',
+    '''List of nick that doesn't get the welcome message.'''))
+conf.registerGlobalValue(Glob2Chan, 'gamers', registry.String('',
+    '''List of nick that are notified when someone calls @ask4game.'''))
+conf.registerGlobalValue(Glob2Chan, 'helpers', registry.String('',
+    '''List of nick that are notified when someone calls @ask4help.'''))
+
 
 
 # vim:set shiftwidth=4 tabstop=4 expandtab textwidth=79:
diff --git a/Glob2Chan/plugin.py b/Glob2Chan/plugin.py
index 0fdd05e..97ecfb3 100644
--- a/Glob2Chan/plugin.py
+++ b/Glob2Chan/plugin.py
@@ -31,15 +31,149 @@
 import supybot.utils as utils
 from supybot.commands import *
 import supybot.plugins as plugins
+import supybot.ircmsgs as ircmsgs
 import supybot.ircutils as ircutils
 import supybot.callbacks as callbacks
 
 
 class Glob2Chan(callbacks.Plugin):
-    """Add the help for "@plugin help Glob2Chan" here
-    This should describe *how* to use this plugin."""
-    pass
+    def doJoin(self, irc, msg):
+        channel = msg.args[0]
+        if channel != '#glob2':
+            return
+        nick = msg.nick
+        if nick.startswith('[YOG]') and \
+                nick not in self.registryValue('nowelcome').split(' '):
+            irc.queueMsg(ircmsgs.privmsg(nick, 'Hi %s, welcome to the '
+                'globulation online game. Some people are connected from '
+                'IRC if you say there name, they may answer you or start '
+                'playing. For more help, type "@g2help" (without the quotes).'%
+                nick))
+        if nick.startswith('[YOG]'):
+            irc.queueMsg(ircmsgs.IrcMsg(s='WHOIS %s' % nick))
 
+    def do311(self, irc, msg):
+        nick = msg.args[1]
+        realname = msg.args[5]
+        try:
+            version = 'Glob2 version %s' % realname.split('-')[1]
+        except:
+            version = 'unknown version'
+        irc.queueMsg(ircmsgs.privmsg('#glob2', 'Welcome to %s, running %s' % \
+            (nick, version)))
+
+    def g2help(self, irc, msg, args, mode):
+        channel = msg.args[0]
+        if channel != '#glob2':
+            return
+        nick = msg.nick
+        if mode is None and nick.startswith('[YOG]'):
+            mode = 'yog'
+        elif mode is None:
+            mode = 'irc'
+        if not mode in ('yog', 'irc'):
+            irc.error('Modes can are only "irc" and "yog"')
+            return
+        if mode == 'irc':
+            irc.reply('(help for YOG users:) If you are feed up with getting '
+                'a welcome message each time you log in, type "@nowelcome". '
+                'If you want to send an automatically alert to every people '
+                'who wants to play but who is not reading the chat, type '
+                '"@ask4game". For more information, ask for help, with '
+                'typing `!ask4help`. You can find stats about this channel '
+                'at http://openihs.org:8081/global/glob2')
+        elif mode == 'yog':
+            irc.reply('(help for IRC users:) If you want to be notified each '
+                'time someone uses "@ask4game" (game query) or "@ask4help" '
+                '(help query), type "@subscribe ask4game" or "@subscribe '
+                'ask4help" (depending on what you want). The opposite of '
+                '"@subscribe" is "@unsubscribe".')
+    g2help = wrap(g2help, [optional('somethingWithoutSpaces')])
+
+    def nowelcome(self, irc, msg, args):
+        """takes no arguments
+
+        Disable the welcome message"""
+        channel = msg.args[0]
+        if channel != '#glob2':
+            return
+        nick = msg.nick
+        if not nick.startswith('[YOG]'):
+            irc.error('You are not a YOG user, so, their is no reason I send '
+                'you a welcome message, but you ask me to stop sending them '
+                'to you. Are you crazy?')
+            return
+        self.registryValue('nowelcome', value='%s %s' %
+                (self.registryValue('nowelcome'), nick))
+        irc.reply('I will not send you again the welcome message')
+    nowelcome = wrap(nowelcome, [])
+
+    def ask4game(self, irc, msg, args):
+        """takes no arguments
+
+        Notifies the gamers who subscribed to the alert list you want
+        to play."""
+        channel = msg.args[0]
+        if channel != '#glob2':
+            return
+        online = irc.state.channels[channel].users
+        gamers = self.registryValue('gamers')
+        onlineGamers = [x for x in online if x in gamers]
+        if len(onlineGamers) == 0:
+            irc.reply('Sorry, no registered gamer is online')
+            return
+        irc.reply('%s: %s' % (' & '.join(onlineGamers),
+                              'Someone is asking for a game!'),
+                  prefixNick=False)
+    ask4game = wrap(ask4game, [])
+
+    def ask4help(self, irc, msg, args):
+        """takes no arguments
+
+        Notifies the helers who subscribed to the alert list you want
+        to play."""
+        channel = msg.args[0]
+        if channel != '#glob2':
+            return
+        online = irc.state.channels[channel].users
+        helpers = self.registryValue('helpers')
+        onlineHelpers = [x for x in online if x in helpers]
+        if len(onlineHelpers) == 0:
+            irc.reply('Sorry, no registered helper is online')
+            return
+        irc.reply('%s: %s' % (' & '.join(onlineHelpers),
+                              'Someone is asking for help!'),
+                  prefixNick=False)
+    ask4help = wrap(ask4help, [])
+
+    def subscribe(self, irc, msg, args, type_):
+        """{ask4game|ask4help}
+
+        Subscribes you to the gamers/helpers alert list."""
+        channel = msg.args[0]
+        if channel != '#glob2':
+            return
+        nick = msg.nick
+        print repr(type_)
+        if type_ == 'ask4game':
+            if nick in self.registryValue('gamers').split(' '):
+                irc.error('You already subscribed to this list')
+                return
+            print '%s %s' % \
+                (self.registryValue('gamers'), nick)
+            self.setRegistryValue('gamers', value='%s %s' %
+                (self.registryValue('gamers'), nick))
+        elif type_ == 'ask4help':
+            if nick in self.registryValue('helpers').split(' '):
+                irc.error('You already subscribed to this list')
+                return
+            self.setRegistryValue('helpers', value='%s %s' %
+                (self.registryValue('helpers'), nick))
+        else:
+            irc.error('The only available subscriptions are ask4game and '
+                'ask4help.')
+        irc.reply('I will notify you each time someone uses %s.' % type_)
+    subscribe = wrap(subscribe, ['somethingWithoutSpaces'])
 
 Class = Glob2Chan
 
diff --git a/Glob2Chan/test.py b/Glob2Chan/test.py
index 7c63ccc..e86f6e7 100644
--- a/Glob2Chan/test.py
+++ b/Glob2Chan/test.py
@@ -29,9 +29,11 @@
 ###
 
 from supybot.test import *
+import supybot.ircmsgs as ircmsgs
 
 class Glob2ChanTestCase(PluginTestCase):
     plugins = ('Glob2Chan',)
 
 
+
 # vim:set shiftwidth=4 tabstop=4 expandtab textwidth=79: