Why search engine submission?

[Sonte1978]

Good Unique Content and amount of good One way links. Also the domain age too does play a vital role.

[Moorethompson123]

All SEO people are daily struggling hard to put their website URL to hundreds of search engine directories manually or automatically. Why search engine submission is necessary?

[RichardRoss123]

search engine submission is not required. If your site has good links it will get indexed well even if you dont add it manualy to the search engine. Concentrate on the links.

[WesleyJuarez124]

We need to submit our website to search engine for crawling, indexing.