Another great way to increase your exposure in the search engines is to submit all of the major pages within your site individually. After the initial submission comes the maintenance. Review and update your site often. Keep it fresh. If the rate of hits slows down, it is probably time to resubmit with updated copy.
Several occasions call for resubmission to search engines.
New submissions may have usurped your prominent position on the list, moving you down far enough to place you past the 30 mark, or even to be dropped completely. You may have changed hosts, or refocused the text in your site. Regardless of the reason, resubmit your site at least every six months. The Internet is a constantly changing force. You must be constantly changing and refocusing to keep up with it.