I stole this from aliettedb:

The Rules of the Game Are:

Bold the women by whom you own books
Italicize those by whom you’ve read something of (short stories count).
*Star those you don’t recognize
Unmarked are those whose work you have not read



Joan Aiken (I think I've read everything, so why don't I own any??)
Eleanor Arnason
Catherine Asaro
Ellen Asher*
Margaret Atwood
Camille Bacon-Smith*
Kage Baker
Elizabeth Bear
Eluki bes shahar (and I think I've read stuff by her other writing name, not that I can remember what it is)
Anne Bishop
K. J. Bishop
Leigh Brackett
Marion Zimmer Bradley
Lois McMaster Bujold
Emma Bull
Octavia E. Butler
Pat Cadigan
Rachel Caine*
Jayge Carr *
Angela Carter
Jeanne Cavelos
Karen Chance *
Joy Chant
Suzy McKee Charnas
C. J. Cherryh
Susanna Clark
Storm Constantine (I am remiss; I did not know Constantine is a woman)
Louise Cooper
Susan Cooper
Joan Cox *
Kathyrn Cramer
Ellen Datlow
Debra Doyle
Tanarive Due
Rosemary Edghill
Kate Elliott
Carol Emshwiller
Jane S. Fancher
Sheila Finch
Karen Joy Fowler
Esther Friesner
Mary Gentle
Laura Anne Gilman
Lisa Goldstein
Kathleen Ann Goonan
Theodora Goss
Nicola Griffith
Eileen Gunn
Barbara Hambly
Elizabeth Hand
Charlaine Harris
Teresa Nielsen Hayden
Zenna Henderson
Nina Kiriki Hoffman
Nancy Holder
Nalo Hopkinson
Tanya Huff
Kij Johnson
Diana Wynne Jones
Gwyneth Jones
Leigh Kennedy
Caitlin Kiernan
Rosemary Kirstein
Ellen Klages
Mary Robinette Kowal
Nancy Kress
Katherine Kurtz
Ellen Kushner
Madeline L’Engle
Margo Lanagan
Deborah Layne
Sharon Lee
Tanith Lee
Ursula Le Guin
Anna Leonard*
Kelly Link
Jane Linskold
Elizabeth A. Lynn
Katherine MacLean*
Ardath Mayhar*
Anne McCaffrey
Shawna McCarthy
Maureen McHugh
Vonda N. McIntyre
Patricia A. McKillip
R. M. Meluch*
Farah Mendlesohn
Judith Merril
Stephenie Meyer
Barbara Michaels*
Laura Mixon*
Judith Moffett*
Mary Anne Mohanraj
Elizabeth Moon
C. L. Moore
Cheryl Morgan
C. E. Murphy
Pat Murphy
Edith Nesbit (E. A. Nesbit)
Andre Norton
Naomi Novik
Rebecca Ore
Rachel Pollack
Cherie Priest
Marta Randall*
Kit Reed*
Laura Resnick
Ann Rice
M. Rickert
Justina Robson
Michaela Roessner
J. K. Rowling
Kristine Kathryn Rusch
Joanna Russ (I need to buy some Russ!)
Mary Doria Russell (and read some Russell!)
Jessica Amanda Salmonson *
Pamela Sargent
Elizabeth Ann Scarborough
Melissa Scott
Ekaterina Sedia
Nisi Shawl
Delia Sherman
Sharon Shinn
Kristine Smith
Sherwood Smith
Wen Spencer
Nancy Springer
Margaret St. Clair
Caroline Stevermer
Mary Stewart
Judith Tarr
Sheri S. Tepper
Amy Thomson*
James Tiptree, Jr. (must remedy)
Mary Turzillo (must double remedy)
Lisa Tuttle
Catherynne M. Valente
Ann VanderMeer
S. L. Viehl
Joan D. Vinge
Evangeline Walton
Jo Walton
Martha Wells
Kate Wilhelm
Sheila Williams (I have stuff that many of the editors listed have edited, but nothing written by them... Wonder if I should have counted them.)
Connie Willis
Terri Windling
Patricia C. Wrede
Chelsea Quinn Yarbro
Jane Yolen