> > Here's what http://www.m-w.com/ has to say on the matter:
> >
> > You can write 'science fiction', 'sci-fi' and 'SF'. Note the upper case in the latter, and lower case in the two former.
> >
> > Trav"SF could also mean 'sacrifice fly', 'sinking fund' or 'square foot/feet'"ho"what's a 'sacrifice fly'??"lt
>
> But if you write it like "science fiction", then that would mean that you write the other genres like "western", "romance", "mystery", etc., without the capitals. And that seems strange to me.

It seems odd to me that you WOULD capitalize those. Lowercase 'romance' and 'mystery' and 'fiction' and so on look fine to me. 'Western' might be capitalized, but only because it's the name of a place. I'm not too sure on that one.