diff --git a/README.md b/README.md
index ef4eaee..918e7b0 100644
--- a/README.md
+++ b/README.md
@@ -64,6 +64,7 @@
 | AWS Educate                               | Cloud       | [https://aws.amazon.com/de/education/awseducate/](https://aws.amazon.com/de/education/awseducate/)                                                                         |
 | Google Cloud - Skill Badges               | Cloud       | [https://cloud.google.com/training/badges?hl=de](https://cloud.google.com/training/badges?hl=de)                                                                           |
 | W3 Schools - MySql                        | Database    | [https://www.w3schools.com/mysql/](https://www.w3schools.com/mysql/)                                                                                                       |
+| SQL-Island                                | Database    | [https://sql-island.informatik.uni-kl.de](https://sql-island.informatik.uni-kl.de)                                                                                         |
 | NetworkChuck                              | Influencer  | [https://www.youtube.com/@NetworkChuck](https://www.youtube.com/@NetworkChuck)                                                                                             |
 | Raspberry Pi Cloud                        | Influencer  | [https://www.youtube.com/@RaspberryPiCloud](https://www.youtube.com/@RaspberryPiCloud)                                                                                     |
 | Programmieren lernen                      | Influencer  | [https://www.youtube.com/@Programmierenlernen](https://www.youtube.com/@Programmierenlernen)                                                                               |
@@ -76,3 +77,6 @@
 | Build it with .NET                        | Coding      | [https://dotnet.microsoft.com/en-us/](https://dotnet.microsoft.com/en-us/)                                                                                                 |
 | W3 Schools - C#                           | Coding      | [https://www.w3schools.com/cs/index.php](https://www.w3schools.com/cs/index.php)                                                                                           |
 | Leetcode Problems                         | Coding      | [https://leetcode.com/problemset/?difficulty=EASY&page=1](https://leetcode.com/problemset/?difficulty=EASY&page=1)                                                         |
+| IT-Berufe-Podcast                         | Podcast     | [ttps://it-berufe-podcast.de](https://it-berufe-podcast.de)                                                                                                                |
+| Rheinwerk Openbook                        | Book        | [https://www.rheinwerk-verlag.de/openbook](https://www.rheinwerk-verlag.de/openbook)                                                                                       |
+| dpunkt Openbooks                          | Book        | [https://dpunkt.de/openbooks](https://dpunkt.de/openbooks)                                                                                                                 |