A technique used to manipulate the search engines is called as black hat Search engine optimization (SEO). The problem is that white hat SEO does the same thing, therefore, it is not any less “dirty” than black hat in some ways.
An SEO tactic, method or technique is considered as White hat, if it conforms to the search engines’ guidelines and does not attempt to deceive it. White Hat SEO is not only about following guidelines, but is about ensuring that the content a search engine indexes and ranks subsequently, is the same content a user will see.
White Hat advice is summed up as creating content for users, not for search engines and then make that content easily accessible to their spiders. It is more about user friendliness and accessibility rather than about tilting the odds seriously in one’s favor.
prove rankings, Black hat SEO employs more deceptive methods. Usually, the search engines disapprove these techniques. This can range from text that is ‘hidden’, either as text colored similar to the background or by redirecting users from a page which is built for search engines to one that is more human friendly.
As a general rule, a technique that sends a user to a page that was different to the page described in the search is called Black hat. Search engines can and do penalize sites they discover using black hat methods, either by eliminating their listings or reducing their rankings from their databases altogether.
Such penalties can be applied either automatically by the search engines’ algorithms, or by a manual review of a site.
If you are clear about the differences between these two techniques, than its okay otherwise, I will explain further in more points if you don’t.