diff --git a/examples/Widgets/Tutorials/Alignment.ipynb b/examples/Widgets/Tutorials/Alignment.ipynb
index 2e78ca0..a25699e 100644
--- a/examples/Widgets/Tutorials/Alignment.ipynb
+++ b/examples/Widgets/Tutorials/Alignment.ipynb
@@ -7,7 +7,7 @@
    ]
   ],
   "name": "",
-  "signature": "sha256:25599ae01786ec88374ddc5bd814583b1c0cd9fbe69f59fefaeba5c3b1507735"
+  "signature": "sha256:19f2a57c9ac75d472a9e403515009613fac3fbc733219f7fd4f39a0616ca619f"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -15,13 +15,6 @@
   {
    "cells": [
     {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "[< Back to Part 4](Part 4 - Styles.ipynb) or [Index](index.ipynb)"
-     ]
-    },
-    {
      "cell_type": "code",
      "collapsed": false,
      "input": [
@@ -334,13 +327,6 @@
      "metadata": {},
      "outputs": [],
      "prompt_number": 9
-    },
-    {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "In [Part 6](Part 6 - Custom Widget.ipynb) of this [series](index.ipynb), you will learn how to create your own custom widget."
-     ]
     }
    ],
    "metadata": {}
diff --git a/examples/Widgets/Tutorials/Basics.ipynb b/examples/Widgets/Tutorials/Basics.ipynb
index f675a99..3b12ed0 100644
--- a/examples/Widgets/Tutorials/Basics.ipynb
+++ b/examples/Widgets/Tutorials/Basics.ipynb
@@ -6,7 +6,8 @@
     null
    ]
   ],
-  "name": ""
+  "name": "",
+  "signature": "sha256:9a70b52f0b16861d1cd6a8342b233247958977a52bde8d3efd69d21131ce1926"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -17,8 +18,6 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "[Index](index.ipynb)\n",
-      "\n",
       "To use IPython widgets in the notebook, the widget namespace needs to be imported."
      ]
     },
@@ -299,13 +298,6 @@
       }
      ],
      "prompt_number": 10
-    },
-    {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "In [Part 2](Part 2 - Events.ipynb) of this [series](index.ipynb), you will learn about widget events."
-     ]
     }
    ],
    "metadata": {}
diff --git a/examples/Widgets/Tutorials/Custom Widgets.ipynb b/examples/Widgets/Tutorials/Custom Widgets.ipynb
index 8239dd5..18cd3ba 100644
--- a/examples/Widgets/Tutorials/Custom Widgets.ipynb
+++ b/examples/Widgets/Tutorials/Custom Widgets.ipynb
@@ -17,8 +17,6 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "[< Back to Part 5](Part 5 - Alignment.ipynb) or [Index](index.ipynb)\n",
-      "\n",
       "Before reading, make sure to review\n",
       "\n",
       "- [MVC prgramming](http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller)\n",
@@ -1043,16 +1041,9 @@
       }
      ],
      "prompt_number": 24
-    },
-    {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "This concludes Part 6 of the [series](index.ipynb)."
-     ]
     }
    ],
    "metadata": {}
   }
  ]
-}
+}
\ No newline at end of file
diff --git a/examples/Widgets/Tutorials/Events.ipynb b/examples/Widgets/Tutorials/Events.ipynb
index d0bc60f..dcb0c08 100644
--- a/examples/Widgets/Tutorials/Events.ipynb
+++ b/examples/Widgets/Tutorials/Events.ipynb
@@ -6,7 +6,8 @@
     null
    ]
   ],
-  "name": ""
+  "name": "",
+  "signature": "sha256:8cade57fabc6819dc950bc28502028554861fb1440d5d832922b95fd2b8bf25c"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -14,13 +15,6 @@
   {
    "cells": [
     {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "[< Back to Part 1](Part 1 - Basics.ipynb) or [Index](index.ipynb)"
-     ]
-    },
-    {
      "cell_type": "code",
      "collapsed": false,
      "input": [
@@ -246,13 +240,6 @@
      "metadata": {},
      "outputs": [],
      "prompt_number": 6
-    },
-    {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "In [Part 3](Part 3 - Placement.ipynb) of this [series](index.ipynb), you will learn about widget placement."
-     ]
     }
    ],
    "metadata": {}
diff --git a/examples/Widgets/Tutorials/Index.ipynb b/examples/Widgets/Tutorials/Index.ipynb
index 2ba84fb..cdd361a 100644
--- a/examples/Widgets/Tutorials/Index.ipynb
+++ b/examples/Widgets/Tutorials/Index.ipynb
@@ -1,7 +1,7 @@
 {
  "metadata": {
   "name": "",
-  "signature": "sha256:554c73fb7038db942bd25f77ad2217699e1f3fda6535fad67103256dc1beda0b"
+  "signature": "sha256:a2f4e040950648308ac7ec5f95d83948b4499ffc68e6bfd8f6fe8784955f52fb"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -57,14 +57,6 @@
       "- [Alignment](Alignment.ipynb)  \n",
       "- [Custom Widgets](Custom Widgets.ipynb)  "
      ]
-    },
-    {
-     "cell_type": "code",
-     "collapsed": false,
-     "input": [],
-     "language": "python",
-     "metadata": {},
-     "outputs": []
     }
    ],
    "metadata": {}
diff --git a/examples/Widgets/Tutorials/Placement.ipynb b/examples/Widgets/Tutorials/Placement.ipynb
index 9f0e081..cd3b5ee 100644
--- a/examples/Widgets/Tutorials/Placement.ipynb
+++ b/examples/Widgets/Tutorials/Placement.ipynb
@@ -6,7 +6,8 @@
     null
    ]
   ],
-  "name": ""
+  "name": "",
+  "signature": "sha256:60ff1a42e4dbc911ae15b409033e993257425c982809950746a567a4419b9484"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -14,13 +15,6 @@
   {
    "cells": [
     {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "[< Back to Part 2](Part 2 - Events.ipynb) or [Index](index.ipynb)"
-     ]
-    },
-    {
      "cell_type": "code",
      "collapsed": false,
      "input": [
@@ -172,13 +166,6 @@
      "metadata": {},
      "outputs": [],
      "prompt_number": 7
-    },
-    {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "In [Part 4](Part 4 - Styles.ipynb) of this [series](index.ipynb), you will learn about widget styling."
-     ]
     }
    ],
    "metadata": {}
diff --git a/examples/Widgets/Tutorials/Styles.ipynb b/examples/Widgets/Tutorials/Styles.ipynb
index ec1ec2a..136ae87 100644
--- a/examples/Widgets/Tutorials/Styles.ipynb
+++ b/examples/Widgets/Tutorials/Styles.ipynb
@@ -6,7 +6,8 @@
     null
    ]
   ],
-  "name": ""
+  "name": "",
+  "signature": "sha256:cd7d3d42126bdbf20c087014460779dfbdb0a63dcb8f489ba7ebfc230a685edd"
  },
  "nbformat": 3,
  "nbformat_minor": 0,
@@ -14,13 +15,6 @@
   {
    "cells": [
     {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "[< Back to Part 3](Part 3 - Placement.ipynb) or [Index](index.ipynb)"
-     ]
-    },
-    {
      "cell_type": "code",
      "collapsed": false,
      "input": [
@@ -353,13 +347,6 @@
      "metadata": {},
      "outputs": [],
      "prompt_number": 10
-    },
-    {
-     "cell_type": "markdown",
-     "metadata": {},
-     "source": [
-      "In [Part 5](Part 5 - Alignment.ipynb) of this [series](index.ipynb), you will learn about widget alignment."
-     ]
     }
    ],
    "metadata": {}