Plan ahead for your submissions.

Search engines can take up to a month to index a site. Therefore, if you have, for example, a new retail site that you want live and highly-ranked by the holiday season, you should have it fine-tuned and ready for submission several months in advance to allow for a few submission cycles. If your site does not appear after about a month, re-submit. If you continue to not achieve the search engine rankings you want, revisit your keyword strategy and usage and re-submit.