Search engine submission is how a webmaster submits a web site directly to a search engine. While Search Engine Submission is often seen as a way to promote a web site.More than 80% of web traffic comes from search engine referrals. If you're serious about getting visitors, it is critical that your site is indexed by them.

There are two basic reasons to submit a web site or web page to a search engine. The first reason would be to add an entirely new web site because the site operators would rather not wait for a search engine to discover them. The second reason is to have a web page or web site updated in the respective search engine.

How web sites are submitted

There are two basic methods still in use today that would allow a webmaster to submit their site to a search engine. They can either submit just one web page at a time, or they can submit their entire site at one time with a sitemap. However, all that a webmaster really needs to do is to submit just the home page of a web site. With just the home page, most search engines are able to crawl a site, provided that it is well designed.

Here you can submit your Website to the following search engines freely. Remember, without search engine optimization it will be unlikely that you'll have top rankings in the search engine results. Before even considering this free submission one should keep some things in mind:

    Your Web site should be indexable.
    Before you submit to directories, none of your pages should be 'under cunstruction'.

Here i am giving the list of top ranked Search engine and Directories  where you can submit your site for free submission:

Search Engine Submission List