diff --git a/README.md b/README.md
index 3b584c99..bb94ab00 100644
--- a/README.md
+++ b/README.md
@@ -268,7 +268,7 @@ _See also: [WeblogMatrix](https://www.weblogmatrix.org/)_
 
 Event scheduling, reservation, and appointment management software.
 
-_Related: [Polls and Events](#polls-and-events)_
+_Related: [Polls and Events](#polls-and-events), [Groupware](#groupware)_
 
 - [Alf.io](https://alf.io/) - Ticket reservation system. ([Demo](https://demo.alf.io/authentication), [Source Code](https://github.com/alfio-event/alf.io)) `GPL-3.0` `Java`
 - [Cal.com](https://cal.com/) - Online appointment scheduling system. ([Demo](https://app.cal.com/bailey), [Source Code](https://github.com/calcom/cal.com)) `AGPL-3.0` `Nodejs`
@@ -1086,7 +1086,9 @@ _Related: [Games](#games)_
 
 **[`^        back to top        ^`](#awesome-selfhosted)**
 
-Collaborative software or [groupware](https://en.wikipedia.org/wiki/Collaborative_software) is designed to help people working on a common task to attain their goals. Groupware often regroups multiple services such as file sharing, calendar/events management, address books... in a single, integrated application.
+Collaborative software or [groupware](https://en.wikipedia.org/wiki/Collaborative_software) is designed to help people working on a common task to attain their goals. Groupware often regroups multiple services such as file sharing, calendar/events management, appointment scheduling, address books... in a single, integrated application.
+
+_Related: [Booking and Scheduling](#booking-and-scheduling)_
 
 - [Citadel](https://www.citadel.org/) - Groupware including email, calendar/scheduling, address books, forums, mailing lists, IM, wiki and blog engines, RSS aggregation and more. ([Source Code](https://www.citadel.org/source.html)) `GPL-3.0` `C/Docker/Shell`
 - [Colanode](https://colanode.com) - Collaboration suite with real-time messaging, rich text pages, file management, and dynamic databases - built for offline work (alternative to Slack, Notion). ([Source Code](https://github.com/colanode/colanode)) `Apache-2.0` `K8S/Docker`