If you've submitted to directories in the past, using another service, or on your own, then you could avoid submitting to the same directories again by uploading the list of directories to which you have submitted. This option can be found once you are logged in at - http://www.directorymaximizer.com/upload-csv.php. If you have problems uploading, or if you find the process too complicated, you can also mail us the list at: firstname.lastname@example.org and we will ensure the list is uploaded and resubmissions are not made. If you've submitted your site in the past, using our service, then you needn't ever have to worry about duplicate submissions. Irrespective of the submission option you choose in the 'Submit Site' section, our system will automatically avoid duplications and only take into consideration unique directory submissions.