I’ve created a first version of a presentation idea app at https://dev.xwiki.org/xwiki/bin/view/PresentationIdea/
The goal is to centralize all our ideas for giving presentations around XWiki. Also when a presentation is given, it’s good to indicate it there with a link to the presentation/blog post/etc.
I’ve added an entry on https://dev.xwiki.org/xwiki/bin/view/Community/ for it (at the bottom).
Feel free to contribute.
Note that this replaces the previous unstructured pages we had in the Draft space.