If you are trying to increase your Web traffic and are looking for the most effective international marketing strategy, there are two different methods you might wish to explore. One option is search engine optimization (SEO) and the other is search engine advertising (SEA). Search Engine Optimization (SEO) is the process of affecting the visibility of a website or a web page in a web search engines unpaid results—often referred to as "natural", "organic", or "earned" results. We are Listing your business in all the search engines like Google, Bing, Yahoo etc. When a person searching for a category or business your company will be listed in their search list. Search engine optimization is necessatry for small business to large business units to generate business. Search Engine Advertising (SEA), In Internet marketing, search advertising is a method of placing online advertisements on web pages that show results from search engine queries. Through the same search-engine advertising services, ads can also be placed on Web pages with other published content.