It's hard to visit a marketing related website without some company offering to submit your site to the search engines. Of course what many people don't realize is that you're not going to get into the SE's using these 'site submission tools' the only way to get into the search engine is for them to index your site after finding a link for your blog or website from a site that is in Google's or any other search engines results already. The bottom line is you should never pay for or use an automated search engine submission service.