Search engine marketing, also referred to as SEM, is the act of marketing a web site via search engines. A Search Engine Marketer uses techniques to purposely improve rank in organic or natural listings, purchased paid listings or a combination of these and other search engine-related activities so that more visitors and potential buyers find a company’s website. When a potential buyer is looking to purchase (or is in the “research mode”) they often turn to search engines such as Google, MSN, and Yahoo! to search. A Search Engine Marketer, using generally accepted Search Engine Marketing techniques, can increase the chances of a company’s website showing up in a search engine’s results when that potential buyer searches for a product that the company sells.