These are just a few resources that I have collected. Of course there are many more that would be a great help to the writing community. Please send any that you recommend to: editor@sdwriteway.org.
http://www.authorhouse.com/home~PagePK~05db577b-9c2a-47ed-91d5-e78fb9f961a3.aspx
http://www.infinitypublishing.com/