When a search engine returns its search results, it gives you two types of results:
Organic search results are the Web page listings that most closely match the user’s search query based on relevance. Also called “natural” search results, ranking high in the organic results is by using SEO .
Paid results refers to advertisements — the Web site owners have paid to have their Web pages display for certain keywords, so these listings show up when someone runs a search query containing those keywords.
Many of the seo providers provides seo service to increase page rank of a particular website in Google search results . Search engine visibility service is available at http://www.xnynz.com/seo-tool/