There isn't one. Search engines are designed to find links - that's what they do. If you've got links to your site, they'll find it. And there's absolutely no reason to submit to dozens or even hundreds of search engines. People only use about 5 or 6 search sites in any number, and most others take their results from those.
to go into a little more detail, submitting you sites so search engines will allow them to index your site faster. and this doesn't just mean the big ones like google or yahoo. there are thousands of smaller search engines that could take months to find and index your site otherwise.
I really do not know it's advantage and I guess it is not necessary to submit your website to all search enignes
Any decent search engine will find any decent site. The ones that need help by 'submitting' might generate .01% of traffic.
well the number one reason is to increase search engine ranking. Increases the traffic to your website. Increasing Seo ranking is very important for any website. Yousuf www.wordmight.com
No point in submitting to search engines. Make a good site, get good backlinks and any search engine worth anything will find you.
IMO, for quick index..And not all the Search Engine has a exact results of results in same keyword. So by adding site to them, there's a more chance that your site will include in the results list.