The PermaTalks, originally "PermaPuheet" (Finnish term for "permatalks,") is a permaculture online lecture series which runs in Finland since 2020 - every year in the beginning of the year - one lecture a week - usually every Thursday at 18:30 EET.
Teachers introduce one topic of their choice and teach for 30 to 90 minutes. At the end of the sessions there is usually a Q&A. After the lecture and Q&A has finished there is an Open Space for about 30 minutes.
You can brows all the teachers and lectures at https://permapuheet.fi/ and watch most of the lectures.