diff --git a/CHANGELOG.mkdn b/CHANGELOG.mkdn
index b974184..6ada8ac 100644
--- a/CHANGELOG.mkdn
+++ b/CHANGELOG.mkdn
@@ -28,7 +28,8 @@ CHANGELOG
 * Advanced Mode: Alter IRC user mode - Kiooeht [evacipatedBox]
 * Logviewer chum search - Kiooeht [evacipatedBox]
 * Logviewer log search - Kiooeht [evacipatedBox]
-* Set server and port from command line - Kiooeht [evacipated]
+* Set server and port from command line - Kiooeht [evacipatedBox]
+* Invite-only memos, invite chums to memos - Kiooeht [evacipatedBox]
 * Bug fixes
     * Logviewer updates - Kiooeht [evacipatedBox]
     * Memo scrollbar thing - Kiooeht [evacipatedBox]
diff --git a/irc.py b/irc.py
index 2b63a13..5bbd7ed 100644
--- a/irc.py
+++ b/irc.py
@@ -221,17 +221,27 @@ class PesterIRC(QtCore.QThread):
             helpers.names(self.cli, c)
         except socket.error:
             self.setConnectionBroken()
+    @QtCore.pyqtSlot(QtCore.QString, QtCore.QString)
+    def inviteChum(self, handle, channel):
+        h = unicode(handle)
+        c = unicode(channel)
+        try:
+            helpers.invite(self.cli, h, c)
+        except socket.error:
+            self.setConnectionBroken()
 
     moodUpdated = QtCore.pyqtSignal(QtCore.QString, Mood)
     colorUpdated = QtCore.pyqtSignal(QtCore.QString, QtGui.QColor)
     messageReceived = QtCore.pyqtSignal(QtCore.QString, QtCore.QString)
     memoReceived = QtCore.pyqtSignal(QtCore.QString, QtCore.QString, QtCore.QString)
     noticeReceived = QtCore.pyqtSignal(QtCore.QString, QtCore.QString)
+    inviteReceived = QtCore.pyqtSignal(QtCore.QString, QtCore.QString)
     timeCommand = QtCore.pyqtSignal(QtCore.QString, QtCore.QString, QtCore.QString)
     namesReceived = QtCore.pyqtSignal(QtCore.QString, PesterList)
     channelListReceived = QtCore.pyqtSignal(PesterList)
     nickCollision = QtCore.pyqtSignal(QtCore.QString, QtCore.QString)
     myHandleChanged = QtCore.pyqtSignal(QtCore.QString)
+    chanInviteOnly = QtCore.pyqtSignal(QtCore.QString)
     connected = QtCore.pyqtSignal()
     userPresentUpdate = QtCore.pyqtSignal(QtCore.QString, QtCore.QString,
                                    QtCore.QString)
@@ -387,6 +397,11 @@ class PesterHandler(DefaultCommandHandler):
 
     def umodeis(self, server, handle, modes):
         self.parent.mainwindow.modes = modes
+    def invite(self, sender, you, channel):
+        handle = sender.split('!')[0]
+        self.parent.inviteReceived.emit(handle, channel)
+    def inviteonlychan(self, server, handle, channel, msg):
+        self.parent.chanInviteOnly.emit(channel)
 
     def getMood(self, *chums):
         chumglub = "GETMOOD "
diff --git a/memos.py b/memos.py
index dad7b54..36e3949 100644
--- a/memos.py
+++ b/memos.py
@@ -373,8 +373,12 @@ class PesterMemo(PesterConvo):
         self.logchum = QtGui.QAction(self.mainwindow.theme["main/menus/rclickchumlist/viewlog"], self)
         self.connect(self.logchum, QtCore.SIGNAL('triggered()'),
                      self, QtCore.SLOT('openChumLogs()'))
+        self.invitechum = QtGui.QAction(self.mainwindow.theme["main/menus/rclickchumlist/invitechum"], self)
+        self.connect(self.invitechum, QtCore.SIGNAL('triggered()'),
+                     self, QtCore.SLOT('inviteChums()'))
         self.optionsMenu.addAction(self.quirksOff)
         self.optionsMenu.addAction(self.logchum)
+        self.optionsMenu.addAction(self.invitechum)
 
         self.timeslider = TimeSlider(QtCore.Qt.Horizontal, self)
         self.timeinput = TimeInput(self.timeslider, self)
@@ -656,6 +660,24 @@ class PesterMemo(PesterConvo):
         for n in self.mainwindow.namesdb[self.channel]:
             self.addUser(n)
 
+    @QtCore.pyqtSlot(QtCore.QString)
+    def closeInviteOnly(self, channel):
+        c = unicode(channel)
+        if c == self.channel:
+            self.disconnect(self.mainwindow, QtCore.SIGNAL('inviteOnlyChan(QString)'),
+                     self, QtCore.SLOT('closeInviteOnly(QString)'))
+            if self.parent():
+                print self.channel
+                i = self.parent().tabIndices[self.channel]
+                self.parent().tabClose(i)
+            else:
+                self.close()
+            msgbox = QtGui.QMessageBox()
+            msgbox.setText("%s: Invites only!" % (c))
+            msgbox.setInformativeText("This channel is invite-only. You must get an invitation from someone on the inside before entering.")
+            msgbox.setStandardButtons(QtGui.QMessageBox.Ok)
+            ret = msgbox.exec_()
+
     @QtCore.pyqtSlot(QtCore.QString, QtCore.QString, QtCore.QString)
     def userPresentChange(self, handle, channel, update):
         h = unicode(handle)
@@ -916,6 +938,17 @@ class PesterMemo(PesterConvo):
         self.mainwindow.chumList.pesterlogviewer.raise_()
         self.mainwindow.chumList.pesterlogviewer.activateWindow()
 
+    @QtCore.pyqtSlot()
+    def inviteChums(self):
+        if not hasattr(self, 'invitechums'):
+            self.invitechums = None
+        if not self.invitechums:
+            (chum, ok) = QtGui.QInputDialog.getText(self, "Invite to Char", "Enter the chumhandle of the user you'd like to invite:")
+            if ok:
+                chum = unicode(chum)
+                self.mainwindow.inviteChum.emit(chum, self.channel)
+            self.invitechums = None
+
     @QtCore.pyqtSlot()
     def sendtime(self):
         me = self.mainwindow.profile()
diff --git a/menus.py b/menus.py
index 8015a44..ea9b23e 100644
--- a/menus.py
+++ b/menus.py
@@ -990,6 +990,7 @@ class PesterMemoList(QtGui.QDialog):
         self.orjoinlabel = QtGui.QLabel("OR MAKE A NEW MEMO:")
         self.newmemo = QtGui.QLineEdit(channel, self)
         self.secretChannel = QtGui.QCheckBox("HIDDEN CHANNEL?", self)
+        self.inviteChannel = QtGui.QCheckBox("INVITATION ONLY?", self)
 
         self.timelabel = QtGui.QLabel("TIMEFRAME:")
         self.timeslider = TimeSlider(QtCore.Qt.Horizontal, self)
@@ -1016,6 +1017,7 @@ class PesterMemoList(QtGui.QDialog):
         layout_right.addWidget(self.orjoinlabel)
         layout_right.addWidget(self.newmemo)
         layout_right.addWidget(self.secretChannel)
+        layout_right.addWidget(self.inviteChannel)
         layout_right.addWidget(self.timelabel)
         layout_right.addWidget(self.timeslider)
         layout_right.addWidget(self.timeinput)
diff --git a/oyoyo/helpers.py b/oyoyo/helpers.py
index c58f3a0..7ecab79 100644
--- a/oyoyo/helpers.py
+++ b/oyoyo/helpers.py
@@ -76,7 +76,7 @@ def quit(cli, msg='gone'):
     cli._end = 1
 
 def user(cli, username, realname=None):
-    cli.send("USER", realname or username, cli.host, cli.host, 
+    cli.send("USER", realname or username, cli.host, cli.host,
         realname or username)
 
 _simple = (
@@ -84,6 +84,7 @@ _simple = (
     'part',
     'nick',
     'notice',
+    'invite',
 )
 def _addsimple():
     import sys
@@ -106,6 +107,6 @@ def _addNumerics():
     m = sys.modules[__name__]
     for num, name in ircevents.numeric_events.iteritems():
         setattr(m, name, numericcmd(num, name))
-        
+
 _addNumerics()
 
diff --git a/parsetools.py b/parsetools.py
index 051adbf..711508b 100644
--- a/parsetools.py
+++ b/parsetools.py
@@ -492,7 +492,7 @@ def themeChecker(theme):
     "convo/text/closememo", "convo/text/kickedmemo", \
     "main/chums/userlistcolor", "main/defaultwindow/style", \
     "main/chums/moods", "main/chums/moods/chummy/icon", "main/menus/help/help", \
-    "main/menus/help/calsprite", "main/menus/help/nickserv"]
+    "main/menus/help/calsprite", "main/menus/help/nickserv", "main/menus/rclickchumlist/invitechum"]
 
     for n in needs:
         try:
diff --git a/pesterchum.py b/pesterchum.py
index f60db5a..86f4222 100644
--- a/pesterchum.py
+++ b/pesterchum.py
@@ -1404,7 +1404,7 @@ class PesterWindow(MovingWindow):
         except ThemeException, (inst):
             print "Caught: "+inst.parameter
             themeWarning = QtGui.QMessageBox(self)
-            themeWarning.setText("Theme Error: %s\nFalling back..." % (inst))
+            themeWarning.setText("Theme Error: %s" % (inst))
             themeWarning.exec_()
             self.theme = pesterTheme("pesterchum")
 
@@ -1712,7 +1712,7 @@ class PesterWindow(MovingWindow):
         self.connect(self.tabmemo, QtCore.SIGNAL('windowClosed()'),
                      self, QtCore.SLOT('memoTabsClosed()'))
 
-    def newMemo(self, channel, timestr, secret=False):
+    def newMemo(self, channel, timestr, secret=False, invite=False):
         if channel == "#pesterchum":
             return
         if self.memos.has_key(channel):
@@ -1727,6 +1727,8 @@ class PesterWindow(MovingWindow):
         else:
             memoWindow = PesterMemo(channel, timestr, self, None)
         # connect signals
+        self.connect(self, QtCore.SIGNAL('inviteOnlyChan(QString)'),
+                     memoWindow, QtCore.SLOT('closeInviteOnly(QString)'))
         self.connect(memoWindow, QtCore.SIGNAL('messageSent(QString, QString)'),
                      self, QtCore.SIGNAL('sendMessage(QString, QString)'))
         self.connect(memoWindow, QtCore.SIGNAL('windowClosed(QString)'),
@@ -1743,6 +1745,8 @@ class PesterWindow(MovingWindow):
         if self.secret:
             self.secret = True
             self.setChannelMode.emit(channel, "+s", "")
+        if invite:
+            self.setChannelMode.emit(channel, "+i", "")
         memoWindow.sendTimeInfo()
         memoWindow.show()
 
@@ -1887,7 +1891,7 @@ class PesterWindow(MovingWindow):
             themeChecker(theme)
         except ThemeException, (inst):
             themeWarning = QtGui.QMessageBox(self)
-            themeWarning.setText("Theme Error: %s\nFalling back..." % (inst))
+            themeWarning.setText("Theme Error: %s" % (inst))
             themeWarning.exec_()
             theme = pesterTheme("pesterchum")
             return
@@ -2014,6 +2018,19 @@ class PesterWindow(MovingWindow):
         m = unicode(msg)
         if self.convos.has_key(h):
             self.newMessage(h, m)
+    @QtCore.pyqtSlot(QtCore.QString, QtCore.QString)
+    def deliverInvite(self, handle, channel):
+        msgbox = QtGui.QMessageBox()
+        msgbox.setText("You're invited!")
+        msgbox.setInformativeText("%s has invited you to the memo: %s\nWould you like to join them?" % (handle, channel))
+        msgbox.setStandardButtons(QtGui.QMessageBox.Ok | QtGui.QMessageBox.Cancel)
+        ret = msgbox.exec_()
+        if ret == QtGui.QMessageBox.Ok:
+            self.newMemo(unicode(channel), "+0:00")
+    @QtCore.pyqtSlot(QtCore.QString)
+    def chanInviteOnly(self, channel):
+        print "Invite only: %s" % channel
+        self.inviteOnlyChan.emit(channel)
     @QtCore.pyqtSlot(QtCore.QString, QtCore.QString, QtCore.QString)
     def timeCommand(self, chan, handle, command):
         (c, h, cmd) = (unicode(chan), unicode(handle), unicode(command))
@@ -2226,10 +2243,11 @@ class PesterWindow(MovingWindow):
         selectedmemo = self.memochooser.selectedmemo()
         time = unicode(self.memochooser.timeinput.text())
         secret = self.memochooser.secretChannel.isChecked()
+        invite = self.memochooser.inviteChannel.isChecked()
         if newmemo:
             channel = "#"+unicode(newmemo).replace(" ", "_")
             channel = re.sub(r"[^A-Za-z0-9#_]", "", channel)
-            self.newMemo(channel, time, secret=secret)
+            self.newMemo(channel, time, secret=secret, invite=invite)
         elif selectedmemo:
             channel = "#"+unicode(selectedmemo.target)
             self.newMemo(channel, time)
@@ -2701,6 +2719,8 @@ class PesterWindow(MovingWindow):
     leftChannel = QtCore.pyqtSignal(QtCore.QString)
     setChannelMode = QtCore.pyqtSignal(QtCore.QString, QtCore.QString, QtCore.QString)
     channelNames = QtCore.pyqtSignal(QtCore.QString)
+    inviteChum = QtCore.pyqtSignal(QtCore.QString, QtCore.QString)
+    inviteOnlyChan = QtCore.pyqtSignal(QtCore.QString)
     closeSignal = QtCore.pyqtSignal()
     reconnectIRC = QtCore.pyqtSignal()
 
@@ -2811,6 +2831,8 @@ class MainProgram(QtCore.QObject):
                    'setChannelMode(QString, QString, QString)'),
                   ('channelNames(QString)',
                    'channelNames(QString)'),
+                  ('inviteChum(QString, QString)',
+                   'inviteChum(QString, QString)'),
                   ('reconnectIRC()', 'reconnectIRC()')
                   ]
 # IRC --> Main window
@@ -2825,6 +2847,8 @@ class MainProgram(QtCore.QObject):
                    'deliverMemo(QString, QString, QString)'),
                   ('noticeReceived(QString, QString)',
                    'deliverNotice(QString, QString)'),
+                  ('inviteReceived(QString, QString)',
+                   'deliverInvite(QString, QString)'),
                   ('nickCollision(QString, QString)',
                    'nickCollision(QString, QString)'),
                   ('myHandleChanged(QString)',
@@ -2836,7 +2860,9 @@ class MainProgram(QtCore.QObject):
                   ('channelListReceived(PyQt_PyObject)',
                    'updateChannelList(PyQt_PyObject)'),
                   ('timeCommand(QString, QString, QString)',
-                   'timeCommand(QString, QString, QString)')
+                   'timeCommand(QString, QString, QString)'),
+                  ('chanInviteOnly(QString)',
+                   'chanInviteOnly(QString)')
                   ]
     def connectWidgets(self, irc, widget):
         self.connect(irc, QtCore.SIGNAL('finished()'),
diff --git a/themes/enamel/style.js b/themes/enamel/style.js
index 8d812b6..4bbb56f 100644
--- a/themes/enamel/style.js
+++ b/themes/enamel/style.js
@@ -49,7 +49,8 @@
                                "banuser": "Ban User",
                                "opuser": "Make OP",
                                "voiceuser": "Give Voice",
-                               "quirksoff": "Quirks Off"
+                               "quirksoff": "Quirks Off",
+                               "invitechum": "Invite Chum"
                               }
            },
   "chums": { "style": "text-align: center; border:0px; background-image:url($path/chumbg.png); background-color: #ffe400; background-repeat: no-repeat; color: white; font-family: 'Century Gothic';selection-background-color:#646464; font-size:18px; ",
diff --git a/themes/gold/style.js b/themes/gold/style.js
index 87104b0..d67fbc1 100644
--- a/themes/gold/style.js
+++ b/themes/gold/style.js
@@ -52,7 +52,8 @@
                                "banuser": "Ban User",
                                "opuser": "Make OP",
                                "voiceuser": "Give Voice",
-                               "quirksoff": "Quirks Off"
+                               "quirksoff": "Quirks Off",
+                               "invitechum": "Invite Chum"
                               }
            },
   "chums": { "style": "border:0px; background-image:url($path/chumbg.png); background-color: rgb(110,110,110); background-repeat: no-repeat; color: white; font-family: 'Arial';selection-background-color:#646464; font-size:14px; ",
diff --git a/themes/pesterchum/style.js b/themes/pesterchum/style.js
index 7bba32e..3f93859 100644
--- a/themes/pesterchum/style.js
+++ b/themes/pesterchum/style.js
@@ -52,7 +52,8 @@
                                "banuser": "BAN USER",
                                "opuser": "MAKE OP",
                                "voiceuser": "GIVE VOICE",
-                               "quirksoff": "QUIRKS OFF"
+                               "quirksoff": "QUIRKS OFF",
+                               "invitechum": "INVITE CHUM"
                               }
            },
   "chums": { "style": "border:2px solid yellow; background-color: black;color: white;font: bold;font-family: 'Courier';selection-background-color:#646464; ",
diff --git a/themes/trollian/style.js b/themes/trollian/style.js
index 9c47752..fc78ef9 100644
--- a/themes/trollian/style.js
+++ b/themes/trollian/style.js
@@ -51,7 +51,8 @@
                                "banuser": "Ban",
                                "opuser": "Promote",
                                "voiceuser": "Let Speak",
-                               "quirksoff": "Quirks Off" }
+                               "quirksoff": "Quirks Off",
+                               "invitechum": "Invite Chump" }
            },
   "chums": { "style": "font-size: 12px; background: white; border:0px; font-family: 'Arial';selection-background-color:rgb(200,200,200); ",
              "scrollbar": { "style" : "background-color:#c2c2c2;",
diff --git a/themes/typewriter/style.js b/themes/typewriter/style.js
index d84fad0..80c9aa5 100644
--- a/themes/typewriter/style.js
+++ b/themes/typewriter/style.js
@@ -52,7 +52,8 @@
                                "banuser": "Expel User",
                                "opuser": "Promote",
                                "voiceuser": "Let Speak",
-                               "quirksoff": "Quirks Off"
+                               "quirksoff": "Quirks Off",
+                               "invitechum": "Invite User"
                               }
            },
   "chums": { "style": "border:0px; background-color: white; font: bold;font-family: 'Courier';selection-background-color: black; ",