White Hat follows the rules of Google for the purpose of the SEO.They are time taking but effective methods.The methods used for this can be On page and Off page.On page is for the contents and Off page is for the link building.

Black hat is against of the rules.They are used for the quick result.The methods followed are key word stuffing, Invisible text, doorway pages, cloaking, article spinning,meta tag stuffing etc.These methods will give you quick result but also they may result in the banning of your site as they are against the rules.