diff --git a/README.md b/README.md
index c17b33f..1d646b0 100644
--- a/README.md
+++ b/README.md
@@ -19,6 +19,7 @@ Please read [CONTRIBUTING](./CONTRIBUTING.md) if you wish to add software.
   * [Continuous Integration & Continuous Deployment](#continuous-integration--continuous-deployment)
   * [Control Panels](#control-panels)
   * [Deployment Automation](#deployment-automation)
+  * [Diagramming](#diagramming)
   * [Distributed Filesystems](#distributed-filesystems)
   * [DNS](#dns)
   * [Editors](#editors)
@@ -231,6 +232,12 @@ Please read [CONTRIBUTING](./CONTRIBUTING.md) if you wish to add software.
 * [Rocketeer](http://rocketeer.autopergamene.eu/) - PHP task runner and deployment tool.
 * [Vlad the Deployer](http://rubyhitsquad.com/Vlad_the_Deployer.html) - Deployment automation (rake based).
 
+## Diagramming
+
+*Tools to diagram networks.*
+
+* [drawthe.net](http://go.drawthe.net/) - Draws network diagrams dynamically from a text file describing the placement, layout and icons.
+
 ## Distributed Filesystems
 
 *Network distributed filesystems.*
@@ -284,6 +291,7 @@ Please read [CONTRIBUTING](./CONTRIBUTING.md) if you wish to add software.
 
 * [GLPI](http://www.glpi-project.org/spip.php?lang=en) - Information Resource-Manager with an additional Administration Interface.
 * [OCS Inventory NG](http://www.ocsinventory-ng.org/en/) - Enables users to inventory their IT assets.
+* [Netbox](https://github.com/digitalocean/netbox) - IP address management (IPAM) and data center infrastructure management (DCIM) tool.
 * [RackTables](http://racktables.org/) - Datacenter and server room asset management like document hardware assets, network addresses, space in racks, networks configuration.
 * [Ralph](https://github.com/allegro/ralph) - Asset management, DCIM and CMDB system for large Data Centers as well as smaller LAN networks.
 * [Snipe IT](http://snipeitapp.com/) - Asset & license management software.