First off, it’s worth mentioning that many gay people tiresomely assume that many others are, whether they will admit it or not. Particularly famous, talented and important people. Including the late sci-fi impresario Sir Arthur C. Clarke, who died the other day at age 90. Although none of his mainstream obituaries mention the detail, some gay bloggers take it for granted. Heresy, I suppose, to his most dedicated heterosexual fans. Otherwise, just an interesting notion. The Seablogger at Fresh Bilge has an intriguing mention of it.
MORE: I left a comment over at Mouth of the Brazos to the effect that all Clarke did was foresee the communications satellite. Wrongo.
THE TEXAS SCRIBBLER 
Dunno – I couldn’t care less about his proclivities in this area. He was one of the last living grand men of SF, and his books were part of many people childhood dreams.
RIP.
If you say so. I don’t think I ever read anything he wrote. I saw the movie, of course. Should I start with Childhood’s End?