Practically everyone who has access to Internet uses Google, Yahoo, or another popular search engine to browse the net and find extensive information in a matter of seconds. For every search, the search engines return relevant results in two categories: free and sponsored links. The big fight is to have a good ranking on the free search as it gives great exposure and is free!
The search engines have a way to find new websites, however, them finding your newly created site might take a while. To get listed on free search results faster, you may submit your site to the most popular search engines and thus invite them to index your site in their results.
It is free and very easy to submit your website to search engines! You better do that submission manually as the search engines ask for verification when submitting the site. Here are the most popular search engines and the pages where you can add your URL: