diff --git a/README.md b/README.md
index e96ad19..060654a 100644
--- a/README.md
+++ b/README.md
@@ -107,8 +107,9 @@ A curated list of amazingly awesome open source sysadmin resources inspired by [
 
 * [Citadel/UX](http://www.citadel.org/) - Collaboration suite (messaging and groupware) that is descended from the Citadel family of programs.
 * [EGroupware](http://www.egroupware.org/) - Groupware software written in PHP.
+* [Horde Groupware](http://www.horde.org/apps/groupware) - PHP based collaborative software suite that includes email, calendars, wikis, time tracking and file management.
 * [Kolab](https://www.kolab.org) - Another groupware suite.
-* [SOGo](https://www.sogo.nu/) -  Collaborative software server with a focus on simplicity and scalability.
+* [SOGo](https://www.sogo.nu/) - Collaborative software server with a focus on simplicity and scalability.
 * [Zimbra](https://www.zimbra.com/community/) - Collaborative software suite, that includes an email server and web client.
 
 ## Configuration Management Database