Avon Books, mentioned yesterday, is part of the Harper Collins family. If you are interested in writing and voting in the Avon Books'Romance contest, make sure to check the link to the rules of the contest.
Harper Collins has a First Look program going on as well. You can register to review books before they are published. Check the website to register and make sure to read the program rules.
See the books on offer this month. Click here. The historical fiction, Abundance a novel of Marie Antoinette by Sena Jeter Naslund is the one that sounds very interesting to me.