Last year I gave a presentation at the Apostolic Johannite Church's annual Conclave on ontology, good, and evil in pseudo-Dionysius the Areopagite. While the paper itself is available for download via academia.edu (https://www.academia.edu/3618989/The_Limits_of_Ontology_The_Good_to_Evil_in_Pseudo-Dionysius), the presentation was also video recorded. These videos are now in the process of being put on YouTube.
The first one is available here:
The second here:
When all five of them are available I will put them up in a single post.