[ramashankar]

Thanks in advance.

[livin2011]

it is is the misplacing or mis submitting links or keywords. it gives unwanted traffic or wont give the traffic in result.

[aishaarora]

Black hat search engine optimization can be considered any technique or practice that illegitimately boosts a website's ranking within search results.

[benivolent]

Black Hat search engine optimization is normally defined as techniques that are worn to get higher search rankings in an immoral manner.