Hmmm… Ones I can think of are:

• steampunkgirls
• steampunk-beauties
• steampunkd (isn’t specifically about steampunk women but there are some there along with other awesome stuff)
• thenoblehare (as above) 

Actually, almost every steampunk blog you look at is guaranteed to have some steampunk girls in there (well, except this one, for obvious reasons). I hope these are good starting points for you to have a look around, and maybe some of of followers will be able to suggest some more. Good luck!

-Lauren