Just ran into this one, you can submit to it here http://www.omgili.com/addforum.servlet the results show up in Google, sorry if this has been posted before
If you go to this address: http://www.getmyownsite.com/url_submission.html you will find several important directories that I think are the key in search optimization, they are all free and dont require link back and they are also all Google friendly. The most important search engines are also included in the list.