Search Engine Marketing can be broadly categorized into three types:
Search Engine Optimization (SEO) This is the method of increasing the rankings of a webpage in the SERPs to gain more visibility, drive traffic, and also help a website improve its leads and conversions.
Search Engine Advertising While SEO is the means to organically stimulate rankings of a website on the SERPs, Search Engine Advertising is the method that pays search engines such as Google, Yahoo, and Bing so that an ad will emerge on top of their search results.
Paid Submission Paid Submission is a method of listing a company’s information (including its website) to paid online directories. These directories have editors who manually review recommendations.