diff --git a/_posts/2013/2013-07-23-netz39-jugendstil-das-junge-kulturmagazin-06-2013.md b/_posts/2013/2013-07-23-netz39-jugendstil-das-junge-kulturmagazin-06-2013.md
index 7c2365c..f6a6129 100644
--- a/_posts/2013/2013-07-23-netz39-jugendstil-das-junge-kulturmagazin-06-2013.md
+++ b/_posts/2013/2013-07-23-netz39-jugendstil-das-junge-kulturmagazin-06-2013.md
@@ -13,6 +13,6 @@ tags:
 
 # Netz39 @ Jugendstil – Das junge Kulturmagazin 06 / 2013
 
-[![](https://img.youtube.com/vi/AmGMfWSM1Is/0.jpg)](https://www.youtube.com/watch?v=AmGMfWSM1Is&feature=youtu.be&t=9m58s)
+[![](https://img.youtube.com/vi/AmGMfWSM1Is/maxresdefault.jpg)](https://www.youtube.com/watch?v=AmGMfWSM1Is&feature=youtu.be&t=9m58s)
 
 Der offene Kanal Magdeburg hat am 26.6.2013 in Jugendstil – Das junge Kulturmagazin 06 / 2013 über den Netz39 berichtet. [Start bei 9 min 58sec](http://www.youtube.com/watch?v=AmGMfWSM1Is&feature=youtu.be&t=9m58s).
diff --git a/_posts/2013/2013-12-03-netz39-spendenbox.md b/_posts/2013/2013-12-03-netz39-spendenbox.md
index 4a22e98..621cc26 100644
--- a/_posts/2013/2013-12-03-netz39-spendenbox.md
+++ b/_posts/2013/2013-12-03-netz39-spendenbox.md
@@ -13,4 +13,4 @@ feature-img: "assets/img/post-img/2013/netz39-feature04.jpg"
 thumbnail: "assets/img/post-img/2013/netz39-feature04.jpg"
 ---
 
-[![](https://img.youtube.com/vi/jzsVqUGOSoc/0.jpg)](https://www.youtube.com/watch?v=jzsVqUGOSoc)
\ No newline at end of file
+[![](https://img.youtube.com/vi/jzsVqUGOSoc/maxresdefault.jpg)](https://www.youtube.com/watch?v=jzsVqUGOSoc)
\ No newline at end of file
diff --git a/_posts/2014/2014-04-24-cryptoswap-2014.md b/_posts/2014/2014-04-24-cryptoswap-2014.md
index 7b10bb8..a055cf4 100644
--- a/_posts/2014/2014-04-24-cryptoswap-2014.md
+++ b/_posts/2014/2014-04-24-cryptoswap-2014.md
@@ -29,6 +29,6 @@ Erzählt auch Freunden, Bekannten und der Familie davon.
 
 **Nachtrag** Einige Aufzeichnungen sind mittlerweile auch online verfügbar. [Youtube Playlist Cryptoswap](https://www.youtube.com/playlist?list=PLRcZRBHNWONjPRHd2nDyy_ejqcPM5pcP2)
 
-[![](https://img.youtube.com/vi/mlxmAhrqTe8/0.jpg)](https://www.youtube.com/watch?v=mlxmAhrqTe8)
-[![](https://img.youtube.com/vi/8BzHKCYu15c/0.jpg)](https://www.youtube.com/watch?v=8BzHKCYu15c)
-[![](https://img.youtube.com/vi/pZwLxZ-tUCE/0.jpg)](https://www.youtube.com/watch?v=pZwLxZ-tUCE)
\ No newline at end of file
+[![](https://img.youtube.com/vi/mlxmAhrqTe8/maxresdefault.jpg)](https://www.youtube.com/watch?v=mlxmAhrqTe8)
+[![](https://img.youtube.com/vi/8BzHKCYu15c/maxresdefault.jpg)](https://www.youtube.com/watch?v=8BzHKCYu15c)
+[![](https://img.youtube.com/vi/pZwLxZ-tUCE/maxresdefault.jpg)](https://www.youtube.com/watch?v=pZwLxZ-tUCE)
\ No newline at end of file
diff --git a/_posts/2017/2017-02-10-n39-sekunden-fraese-schmieren.md b/_posts/2017/2017-02-10-n39-sekunden-fraese-schmieren.md
index 3cf5e29..13d0585 100644
--- a/_posts/2017/2017-02-10-n39-sekunden-fraese-schmieren.md
+++ b/_posts/2017/2017-02-10-n39-sekunden-fraese-schmieren.md
@@ -12,4 +12,4 @@ tags:
 
 In diesem kurzen Clip erklärt Peter wie einfach die Stepcraft 840 Fräse im Hackerspace neu geschmiert werden kann.
 
-[![](https://img.youtube.com/vi/meZG8agCek4/0.jpg)](https://www.youtube.com/watch?v=meZG8agCek4)
+[![](https://img.youtube.com/vi/meZG8agCek4/maxresdefault.jpg)](https://www.youtube.com/watch?v=meZG8agCek4)