Name few Black Hat SEO techniques?

[hariandro001]

wow such a Great question ..This should be asked before getting into black hat seo..Spamming technique is otherwise known as blackhat methods..These are the following techniques used now a days..
KEYWORD STUFFING,
SPAM COMMENTING,
INVISIBLE TEXTS ,
ARTICLE SPINNING,
DUPLICATE CONTENT,
CLOAKING,
but if u use these techniques they are usually detected sooner or later and your page rank may get lower also be banned..Better advise is use greyhat technique..