diff --git a/4 - Webarchive.ipynb b/4 - Webarchive.ipynb
index 9e3cbb83294644300c2c1fdacc183fe17ffeb3b5..722322dbfadc07a6f9dd0e95bd6eeef75e50ed5c 100644
--- a/4 - Webarchive.ipynb	
+++ b/4 - Webarchive.ipynb	
@@ -10,7 +10,9 @@
    "source": [
     "# 4 - Webarchive\n",
     "\n",
-    "[https://webarchiv.onb.ac.at](https://webarchiv.onb.ac.at)"
+    "[https://webarchiv.onb.ac.at](https://webarchiv.onb.ac.at)\n",
+    "\n",
+    "[https://labs.onb.ac.at/dataset/webarchive/](https://labs.onb.ac.at/dataset/webarchive/)"
    ]
   },
   {
@@ -21,11 +23,11 @@
     }
    },
    "source": [
-    "#### In this block\n",
+    "### In this block\n",
     "\n",
     "* Overview Webarchive\n",
-    "* Overview API\n",
-    "* Overview Content"
+    "* Overview Content\n",
+    "* Overview API"
    ]
   },
   {
@@ -37,7 +39,8 @@
    },
    "source": [
     "* Example Wayback search via API\n",
-    "* Example full text search via API"
+    "* Example full text search via API\n",
+    "* Example download preview SVG thumb of saved page"
    ]
   },
   {
@@ -61,7 +64,7 @@
     }
    },
    "source": [
-    "#### What is the Webarchive Austria?"
+    "### What is the Webarchive Austria?"
    ]
   },
   {
@@ -87,7 +90,30 @@
     }
    },
    "source": [
-    "#### What can I use?"
+    "### Who is the Webarchive Austria?"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "source": [
+    "* Andreas Predikaka\n",
+    "* webarchiv@onb.ac.at"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "subslide"
+    }
+   },
+   "source": [
+    "### What can I use?"
    ]
   },
   {
@@ -114,7 +140,7 @@
     }
    },
    "source": [
-    "#### What does that mean?"
+    "### What does that mean?"
    ]
   },
   {
@@ -136,7 +162,7 @@
     }
    },
    "source": [
-    "#### What if I really really need to see the content?"
+    "### What if I really really need to see the content?"
    ]
   },
   {
@@ -158,7 +184,17 @@
     }
    },
    "source": [
-    "* ...to `PRINT OUT THE INTERNET!`\n",
+    "* ...to `PRINT OUT THE INTERNET!`"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "source": [
     "![Office folders labeled 'Internet'](./media/internet-folders.jpg)"
    ]
   },
@@ -170,7 +206,7 @@
     }
    },
    "source": [
-    "#### How is a search where I don't see detailed results useful to me?"
+    "### How is a search where I don't see detailed results useful to me?"
    ]
   },
   {
@@ -205,22 +241,139 @@
     }
    },
    "source": [
-    "## Overview API\n",
+    "## Overview Content\n",
     "\n",
     "[https://webarchiv.onb.ac.at](https://webarchiv.onb.ac.at)"
    ]
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
-   "source": []
+   "metadata": {
+    "slideshow": {
+     "slide_type": "subslide"
+    }
+   },
+   "source": [
+    "### What's inside?"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "source": [
+    "* High crawl frequency (daily or weekly)\n",
+    "  * Media sites (ORF)\n",
+    "  * Political parties\n",
+    "* Low crawl frequency (a few times per year)\n",
+    "  * Topic: Gender\n",
+    "  * Austrian domains (via nic.at)\n",
+    "* Event crawls (daily or weekly within a certain timespan)\n",
+    "  * Elections\n",
+    "  * Olympia\n",
+    "  * Refugee crisis 2015\n",
+    "  * Song Contest 2015"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "subslide"
+    }
+   },
+   "source": [
+    "### Can I have a list?"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "source": [
+    "* Sure, there you go:\n",
+    "  * Media, political, gender: [https://webarchiv.onb.ac.at/data/selective.json](https://webarchiv.onb.ac.at/data/selective.json)\n",
+    "  * Events: [https://webarchiv.onb.ac.at/data/events.json](https://webarchiv.onb.ac.at/data/events.json)\n",
+    "  * All domains: **TODO: ADD LINK**\n",
+    "\n",
+    "```json\n",
+    "[\n",
+    "  {\n",
+    "    \"id\": 37,\n",
+    "    \"name\": \"Frau/Gender\",\n",
+    "    \"begin\": \"29.11.2016\",\n",
+    "    \"groups\": [\n",
+    "      {\n",
+    "        \"seeds\": [\n",
+    "          \"http://abtreibung.at/\"\n",
+    "        ],\n",
+    "        \"group_id\": 1,\n",
+    "        \"name\": \"Abtreibung.at\"\n",
+    "      },\n",
+    "      {\n",
+    "        \"seeds\": [\n",
+    "          \"http://aep.at\"\n",
+    "        ],\n",
+    "        \"group_id\": 2,\n",
+    "        \"name\": \"Arbeitskreis Emanzipation Partnerschaft\"\n",
+    "      },```"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "subslide"
+    }
+   },
+   "source": [
+    "### How big is the Austrian Webarchive?"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "source": [
+    "* About 500GiB indexed text\n",
+    "* About 100 million HTML documents\n",
+    "* Raw data: 115.28TiB uncompressed"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "subslide"
+    }
+   },
+   "source": [
+    "### Where's the catch?"
+   ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "source": [
+    "* Social media is currently too hard to crawl\n",
+    "* Limited disk space necessitates a size limit per page\n",
+    "  * Ex: domain crawl 10MB -> 100MB -> 7GB\n",
+    "* Limitations of public access\n",
+    "  * Practically every webarchive except the Internet Archive"
+   ]
   },
   {
    "cell_type": "markdown",
@@ -230,17 +383,74 @@
     }
    },
    "source": [
-    "## Overview Content\n",
+    "## Overview API\n",
     "\n",
     "[https://webarchiv.onb.ac.at](https://webarchiv.onb.ac.at)"
    ]
   },
   {
-   "cell_type": "code",
-   "execution_count": null,
-   "metadata": {},
-   "outputs": [],
-   "source": []
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "subslide"
+    }
+   },
+   "source": [
+    "### How can I access the Austrian Webarchive?"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "source": [
+    "* On site at the ONB\n",
+    "* Online: [https://webarchiv.onb.ac.at](https://webarchiv.onb.ac.at)\n",
+    "* REST API: [https://webarchiv.onb.ac.at/api.html](https://webarchiv.onb.ac.at/api.html)\n",
+    "  * Swagger definition: [https://webarchiv.onb.ac.at/api/swagger.json](https://webarchiv.onb.ac.at/api/swagger.json)\n",
+    "* Python module for easier access: [https://labs.onb.ac.at/gitlab/labs-team/webarchive-api/blob/master/webarchiv.py](https://labs.onb.ac.at/gitlab/labs-team/webarchive-api/blob/master/webarchiv.py) ([raw](https://labs.onb.ac.at/gitlab/labs-team/webarchive-api/raw/master/webarchiv.py?inline=false))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "subslide"
+    }
+   },
+   "source": [
+    "### Why is access via API useful?"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "source": [
+    "* Individual searches may take up to 1 minute\n",
+    "* Sift through loads of metadata\n",
+    "* API-only goodies\n",
+    "  * Easily nominate pages with Austrian content to be saved\n",
+    "  * Download SVG thumbnails of rendered websites\n",
+    "* It's way more fun"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "slideshow": {
+     "slide_type": "fragment"
+    }
+   },
+   "source": [
+    "* Make Andreas happy :)"
+   ]
   }
  ],
  "metadata": {