I recently found out a good way to get hundreds of backlinks in wordpress. You need WP Robot. Go to your single.php inside the loop just put your anchor text and hyperlink in plain ol' html. Every auto post will have your link on the bottom of the post. If your a real snazzy coder your can call to a php file which rotates a list of links for you. So you do some backlinking to your subdomains, pages, etc. Hope this little trick helps. Sometimes these in plain sight techniques make a big difference.