With attendance falling in genealogy societies meetings and other social dilemmas preventing members from attending meetings, societies and organizations have turned to the web for gathering their members in one place. This phenomenon started five years ago and has become the norm in some state and local genealogy societies. Dick Eastman wrote a article in his paid blog on the subject recently and it has been the basis of "DearMyrtle" for several years mow. Posts to these two presenters on the subject is below.
https://blog.eogn.com/2016/08/26/put-away-your-wallet-and-hold-meetings-online-for-free/
Many organizations off virtual meetings and webinars free of charge and public is invited to attend.
Also YouTube hosts many videos and seminars free of charge.
http://blog.genealogicalstudies.com/
https://www.youtube.com/results?search_query=genealogy+research