diff --git a/doc/2.3-setting-up-check-plugins.md b/doc/2.3-setting-up-check-plugins.md
index 6822acb46..4e453ed73 100644
--- a/doc/2.3-setting-up-check-plugins.md
+++ b/doc/2.3-setting-up-check-plugins.md
@@ -1,13 +1,20 @@
 ## Setting up Check Plugins
 
 On its own Icinga 2 does not know how to check external services. The
-[Nagios Plugins Project](https://www.nagios-plugins.org/) provides an extensive
-set of plugins which can be used by Icinga 2 to check whether services are
-working properly.
+[Monitoring Plugins Project](https://www.monitoring-plugins.org/) (former
+Nagios Plugins) provides an extensive set of plugins which can be used by
+Icinga 2 to check whether services are working properly.
 
 The recommended way of installing these standard plugins is to use your
-distribution's package manager. For your convenience here is a list of package
-names for some of the more popular operating systems/distributions:
+distribution's package manager.
+
+> **Note**
+>
+> The `Nagios Plugins` project was renamed to `Monitoring Plugins` project
+> in Jan 2014. Therefore package names may still reflect the old name.
+
+For your convenience here is a list of package names for some of the more
+popular operating systems/distributions:
 
 OS/Distribution        | Package Name       | Installation Path
 -----------------------|--------------------|---------------------------
@@ -28,7 +35,7 @@ All existing Nagios or Icinga 1.x plugins found on public community websites
 will work with Icinga 2 as well.
 
 * [MonitoringExchange](https://www.monitoringexchange.org)
-* [Icinga Wiki]()
+* [Icinga Wiki](https://wiki.icinga.org)
 
 Once you have downloaded the plugin copy them into the directory defined by the global
 `IcingaMacro` `$plugindir$` and make sure that the user the Icinga daemon is running as
diff --git a/doc/6-advanced-topics.md b/doc/6-advanced-topics.md
index 1f7ac0475..52c686456 100644
--- a/doc/6-advanced-topics.md
+++ b/doc/6-advanced-topics.md
@@ -325,12 +325,14 @@ Modified Attributes can be reset using external commands.
 
 ## Plugin API
 
-Currently the native plugin api inherited from the `Nagios Plugins` project is available.
+Currently the native plugin api inherited from the `Monitoring Plugins` (former
+`Nagios Plugins`) project is available.
 Future specifications will be documented here.
 
-### Nagios Plugin API
+### Monitoring Plugin API
 
-The `Nagios Plugin API` is defined the [Nagios Plugins Development Guidelines](https://www.nagios-plugins.org/doc/guidelines.html).
+The `Monitoring Plugin API` (former `Nagios Plugin API`) is defined in the
+[Monitoring Plugins Development Guidelines](https://www.monitoring-plugins.org/doc/guidelines.html).
 
 
 
diff --git a/doc/9-vagrant-demo-vm.md b/doc/9-vagrant-demo-vm.md
index 4997c148f..757c6f6d0 100644
--- a/doc/9-vagrant-demo-vm.md
+++ b/doc/9-vagrant-demo-vm.md
@@ -21,7 +21,7 @@ The Vagrant VM is based on CentOS 6.4 and uses the official Icinga 2 RPM
 packages from `packages.icinga.org`.
 
 In addition to installing Icinga 2 the Vagrant script also installs the Icinga
-1.x Classic UI and the check plugins that are available from the Nagios Plugins
+1.x Classic UI and the check plugins that are available from the Monitoring Plugins
 project.
 
 The Classic UI is available at [http://localhost:8080/icinga](http://localhost:8080/icinga).