Search Engine Submission
Largely a myth propagated by companies that charge a fee for search engine submission. In the early days of the web it was necessary to “tell” search engines about the existence of your web sites so that they could send visitors your way. Search engines had – and many still have – submission forms where users could add their sites. Nowadays though, search engines are so good at spidering the Web that they are likely to find your site very soon after it is published, making search engine submission redundant.