Thank you, but those three are blogs, not forums. What I class as a forum is like for example a SFFChronicles style bulletin board system (BBS). FB or Twitter are neither, and you really cannot get a good conversation going in there. There is of course Reddit's r/theexpanse, which is kind of forum and a chat system, and hugely more popular than our stuff in here.
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These are the Hugo Nominees for best Fanzine (does anyone print a zine anymore?)
Best Fanzine
File 770, edited by Mike Glyer
Galactic Journey, edited by Gideon Marcus
Journey Planet, edited by Team Journey Planet
nerds of a feather, flock together, edited by The G, Vance Kotrla, and Joe Sherry
Rocket Stack Rank, edited by Greg Hullender and Eric Wong
SF Bluestocking, edited by Bridget McKinney
They are all Blogs? They seems half blog half forum, some are more forum than blog.
I guess forums don't have a Hugo category?