What is SEO?

There are so many search engine in the world like google, yahoo, being etc. If any one want to learn HTML then he will search writing "html tutorial" in google because he don't know the html tutorial site address. now you think, you have a site where teach about html tutorial. If the learner search in google by the name of "html Tutorial". he will find your site and he will go to your site to learn html. This is a site that Google first showed that many of the English HTML tutorial sites, blogs, forums etc.,despite that, some strategies on the site that was labeled before the technique is called Search Engine Optimization (SEO).