Reddit is hosting an on-line convention, the r/fantasy virtual con.
If you don’t use reddit, it can be a bit confusing to start. The link above is the mega thread link, and at least on a computer (which is where I’m sitting now), the events are in the sidebar.
Links don’t go live until the event starts, but each event is persistent (i.e. you can go back and read the various Q&As and the other panels. There are AMAs (ask me anything), which I’ve done one of before; the panel is new, but I believe it just means more people answering questions or riffing off each other’s answers. What happened for me the first time is that they “opened” the AMA, and I went through and answered questions as they arrived. I assume something similar is being done here.
You’ll need to have a reddit account to ask questions or respond, but anyone can read anything posted there. My panel is on Saturday the 26th of April, along with K. D. Edwards, Fonda Lee, T. Frohock and Sherri Woosley.