diff --git a/source/_posts/2012-06-03-owncloud-4-and-nginx.markdown b/source/_posts/2012-06-03-owncloud-4-and-nginx.markdown
index 7def774..e3fb06e 100644
--- a/source/_posts/2012-06-03-owncloud-4-and-nginx.markdown
+++ b/source/_posts/2012-06-03-owncloud-4-and-nginx.markdown
@@ -4,7 +4,9 @@ title: "Owncloud and Nginx"
 date: 2012-06-03 17:35
 comments: true
 categories:
-description: my nginx configuration used for owncloud
+- nginx
+- owncloud
+description: "My nginx configuration used for owncloud"
 ---
 
 **updated at Do 14. Jul 2012**
diff --git a/source/_posts/2012-06-09-use-your-ssh-server-as-a-socks-proxy.markdown b/source/_posts/2012-06-09-use-your-ssh-server-as-a-socks-proxy.markdown
index 1a1c501..6115d7d 100644
--- a/source/_posts/2012-06-09-use-your-ssh-server-as-a-socks-proxy.markdown
+++ b/source/_posts/2012-06-09-use-your-ssh-server-as-a-socks-proxy.markdown
@@ -3,7 +3,10 @@ layout: post
 title: "Use your SSH-server as a socks proxy"
 date: 2012-06-09 13:18
 comments: true
-categories: 
+categories:
+- ssh
+- socks proxy
+- browser
 description: "how to use ssh as a proxy for your browser"
 ---
 
diff --git a/source/_posts/2012-09-19-systemd-on-raspbian.markdown b/source/_posts/2012-09-19-systemd-on-raspbian.markdown
index 1cc79cd..f0ec20f 100644
--- a/source/_posts/2012-09-19-systemd-on-raspbian.markdown
+++ b/source/_posts/2012-09-19-systemd-on-raspbian.markdown
@@ -3,7 +3,10 @@ layout: post
 title: "Systemd on raspbian"
 date: 2012-09-19 17:16
 comments: true
-categories: systemd raspberry pie raspbian
+categories:
+- systemd
+- raspberry pie
+- raspbian
 ---
 
 As I like the stability and raw speed of systemd, I wanted to leave debian's
diff --git a/source/_posts/2012-12-09-icinga-and-pnp4nagios-with-nginx.markdown b/source/_posts/2012-12-09-icinga-and-pnp4nagios-with-nginx.markdown
index 1449614..d8d4da2 100644
--- a/source/_posts/2012-12-09-icinga-and-pnp4nagios-with-nginx.markdown
+++ b/source/_posts/2012-12-09-icinga-and-pnp4nagios-with-nginx.markdown
@@ -3,7 +3,11 @@ layout: post
 title: "Icinga-Web and pnp4nagios with nginx"
 date: 2012-12-09 16:11
 comments: true
-categories: icinga pnp4nagios nginx icinga-web
+categories:
+- icinga
+- pnp4nagios
+- nginx
+- icinga-web
 ---
 
 In this article I will show my nginx configuration for the [icinga](https://www.icinga.org/) web interface. At the time of writing I installed version 1.8 on ubuntu 12.04 using this [ppa](https://launchpad.net/~formorer/+archive/icinga):
diff --git a/source/_posts/2013-01-02-pubsubhubbub-with-octopress.markdown b/source/_posts/2013-01-02-pubsubhubbub-with-octopress.markdown
index 0cbcaa4..4f60405 100644
--- a/source/_posts/2013-01-02-pubsubhubbub-with-octopress.markdown
+++ b/source/_posts/2013-01-02-pubsubhubbub-with-octopress.markdown
@@ -3,7 +3,12 @@ layout: post
 title: "Pubsubhubbub with Octopress"
 date: 2013-01-02 21:44
 comments: true
-categories: superfeedr octopress pubsubhubbub real-time
+categories:
+- superfeedr
+- octopress
+- pubsubhubbub
+- real-time
+description: "Add pubsubhubbub support to octopress feeds"
 ---
 
 In this article I explain how to set up octopress with