"I bought the last edition of the classic Encyclopedia of Science Fiction a few years back - now THAT thing really needs an ebook edition."
Then you'll want the 3rd edition: http://sf-encyclopedia.com/
"I've been in and around fandom since the 1970s, and yet I recognize less than half the names on the list. "
I've been around fandom since the mimd 60s and recognize most of the names.
"Yet big sellers like Ringo or Weber. . . .nowhere to be seen. Sounds like the Hugos: nowadays, an echo chamber for elite Litfen and their propeller beanies. . . "
All the readers of Weber & Ringo have to do is to join Worldcon, nominate, and vote.