Search engine marketing (SEM) has three main types, all aimed at helping you achieve greater exposure in search results.
Pay-Per-Click (PPC): Pay-Per-Click is a form of online advertisement from Google. In supported search results, marketers bid on words and phrases that prompt their advertisements to appear. Any time someone clicks on one of their advertisements, advertisers pay a fee.
Local SEO: Local SEO is a method of optimization of search engines (SEO) that focuses on getting the results of your business listing to appear in Google map. For clicks, there is no fee.
Organic SEO: Organic SEO is an optimization method for the search engine that results in increased exposure of your website content in unpaid, non-local results.