You said in your reply, "You also can't count on the publisher, any publisher, to really push the book. You'll have to do that yourself." I feel ridiculous, but I don't know how to promote the book myself. What would you suggest an author could do to push her book?
You thought getting your book published was hard? Welcome to book promotion and marketing.
First, off you go to the library to get every book you can on book promotion and publicity. Then you crawl around the web to see what's out there. Then, and this is the best piece of advice you'll get today, you find discussion boards of PUBLISHED authors who are talking promotion/marketing etc. An excellent example is MurderMustAdvertise.
Then you make a list of 100 things you can do to promote your book, and you do them. Find out what your publisher will do from the list (like submit to PW and trade review sites) and then you do the others. You can't do the 1000 things suggested in all these places, but you can plan for and do 100 of them.
And don't' feel ridiculous. "Promoting and marketing your book" was not a factory installed application when you were created, nor was it for any of us. We ALL learned this the same way you will. Ridiculous is thinking you know it all if you don't. I much prefer clients to ask for help early instead of making me think they know what they're doing if they don't.