diff --git a/tutorials/key_differences_between_python_2_and_3.ipynb b/tutorials/key_differences_between_python_2_and_3.ipynb
index bfc2af3..56ff09f 100644
--- a/tutorials/key_differences_between_python_2_and_3.ipynb
+++ b/tutorials/key_differences_between_python_2_and_3.ipynb
@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:969dffb51ccca00a6136f4187304ff4a29444b347d9c38f9fe33f77a4af5f6fe"
+  "signature": "sha256:ad53a8e56dd6c7cd1c379333f92a5232a0403e9f4efbad8a765d42d71ebecc0f"
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  "nbformat": 3,
  "nbformat_minor": 0,
@@ -14,7 +14,7 @@
      "source": [
       "[Sebastian Raschka](http://sebastianraschka.com)  \n",
       "\n",
-      "last updated 05/24/2014\n",
+      "last updated 05/27/2014\n",
       "\n",
       "- [Open in IPython nbviewer](http://nbviewer.ipython.org/github/rasbt/python_reference/blob/master/tutorials/key_differences_between_python_2_and_3.ipynb?create=1) \n",
       "\n",
@@ -1866,7 +1866,10 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "Here is a list of some good articles concerning Python 2 and 3 that I would recommend as a follow-up:\n",
+      "Here is a list of some good articles concerning Python 2 and 3 that I would recommend as a follow-up.\n",
+      "\n",
+      "\n",
+      "**// Porting to Python 3** \n",
       "\n",
       "- [Should I use Python 2 or Python 3 for my development activity?](https://wiki.python.org/moin/Python2orPython3)\n",
       "\n",
@@ -1876,8 +1879,26 @@
       "\n",
       "- [Porting Python 2 Code to Python 3](https://docs.python.org/3/howto/pyporting.html)  \n",
       "\n",
-      "- [How keep Python 3 moving forward](http://nothingbutsnark.svbtle.com/my-view-on-the-current-state-of-python-3)\n"
+      "- [How keep Python 3 moving forward](http://nothingbutsnark.svbtle.com/my-view-on-the-current-state-of-python-3)\n",
+      "\n",
+      "**// Pro and anti Python 3**\n",
+      "\n",
+      "- [Everything you did not want to know about Unicode in Python 3](http://lucumr.pocoo.org/2014/5/12/everything-about-unicode/)\n",
+      "\n",
+      "- [Python 3 is killing Python](https://medium.com/@deliciousrobots/5d2ad703365d/)\n",
+      "\n",
+      "- [Python 3 can revive Python](https://medium.com/p/2a7af4788b10)\n",
+      "\n",
+      "- [Python 3 is fine](http://sealedabstract.com/rants/python-3-is-fine/)\n"
      ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
     }
    ],
    "metadata": {}