Here's what I've done so far.
Joined many communities or forums to talk about writing, reading, and publishing. These include:
I joined other sites like:
I joined tagging groups so people would tag my books with the appropriate words. I made an author's page on Amazon and Authorsden.
I have a Twitter page and a Facebook fan page. And of course, I have my new blog.
Help I need from friends, family, or fans. If you've read the book, leave a review. If you know what the books are about, tag them with the appropriate words. If you have a blog, blog about the book - if you do giveaways on your blog and have a YA audience, I'd love to offer a free copy of my eBook.
Any of you who have an account/shelf at goodreads, librarything, or shelfari, add my books to your shelf, leave a review.
Follow my blog and add it to your blog. Leave comments.
Tell other people - neighbors, friends, teens. Or on your Facebook or Twitter.