Great article by Catherine McKenzie at Writer Unboxed.
The covers are one problem, but perhaps more female authors who want to be taken seriously need to adopt first names to suit.
Initials are a bit of a give-away now since J.K. Rowling overdid the thing, but would more men take more notice of Margaret Attwood if she were Mason Attwood, Nadine Gordimer,Nate Gordimer, or Ursula Le Guin, Upton Le Guin, etc.?
Hm, might change my first name to Murdoc, Mac, Morris ...