Lots of statistics about Repositories, updated live at OpenDOAR – Open Access Repositories.
Nothing from Luxembourg either in ROAR (Registry of Open Access Repositories) which also provides interesting statistics on the repositories’ activity levels.
On to the DOAJ (Directory of Open Access Journals) which manages a curated list of quality controlled open access journals, also showing massive growth. And there is one registered journal from Luxembourg, called Articulo (published via the French open access platform revues.org)!
All of this is made possible through open access policies and lots of open source software under the hood, such as the metadata exchange protocol OAI from Open Archives.
The big questions: Is Luxembourg missing a megatrend, or is there simply no awareness to register open access publications and repositories?