SEO stands for 'search engine optimization ''it is the process of getting traffic from organic''eitorial''or'' natural'' listing on search engine.All major search such as google, yahoo.and bing have such results where web page and other context such as videos or local listings as show and ranked based on what the search engine considers most relevant to users ... payment is not' involved. as it is with paid search ads..
- Yahoo
- Bing
- Aol
These are example of search engine.