Human editors review each submission for quality and content before accepting it into the directory.
The volume of new site submissions is so huge that they can afford to be selective. Increase the chances they'll choose you by submitting a first-rate site and following submission guidelines exactly. Inappropriate submissions are much more likely to be rejected instead of forwarded to another editor. You may also increase your chances if you submit to the regional portion of a directory. For instance, imagine that you own a real estate agency in Alabama and want to submit your Web site to Yahoo.