Oooh, look at this:
Full size here.
It’s pretty cool. But where are all the women? Where’s the feminist SF? I admit I’m extraordinarily bad at picking out details from this kind of dense information presentation, but on first pass some giants of the field I didn’t see: Charlotte Perkins Gilman, C. L. Moore, Joanna Russ, Marion Zimmer Bradley, Anne McCaffery, Vonda McIntyre, Suzy Charnas, Elizabeth Lynn, Gwyneth Jones.
Who else?
Nicola Griffith 
Well, to their credit both Ursula K. Le Guin and James Tiptree Jr. were on there.
I didn't see Elizabeth Moon on there.
tranceptor, they're on every list. They always make the canon. It's the other women I fret about.