"where on earth..." - Finding database tutorials

During the last 2 weeks I was searching for database tutorials. The Online Tutorial LOTSE should bekome more interactive. Therefore we are looking for already existing tutorials to avoid doing the same thing twice. The goal is to cooperate with other institutions.
It was not that easy to collect these database tutorials because in Germany there is no portal that serves as a gateway to them. The only collection (mostly Bavarian institutions involved) I found was a collection of tutorials (already created and planned!) that offer a connection to Citavi.
For english tutorials there exists a gateway/ platform: The Animated Tutorial Sharing Project (ANTS) is a collaborative project presently involving librarians in Canada and the United States, but open to librarians elsewhere. It would be good if libraries of other countries would join, too. This platform is a good start. I really appreciate that there is an instruction how to create tutorials and how to put it online! The tutorials itself can be found at DSpace. Each tutorial is presented with its metadata (e.g. Issue date, institution, keywords ...). In some cases you also find information about which software (Camtasia, Captivate etc.) was used to create the tutorial. This is important to know if you would like to change it.