SEO black hat or white hat?

The black hat SEO is the dark side of the Force to achieve excellent rankings in a very short time. This means using methods prohibited by search engines. For example the text invisible (hidden by a picture or the same color as the background), or use scripts that will show different content depending on whether the visitor is a robot or a human: the indexed page is different from the page views by users (this technique is known under the cloaking)! The black hat SEOs also use programs-robots spamming the forums.

 
This can sometimes work miracles, yet very risky. Companies like BMW and Ricoh were caught by hand in the bag. The penalty was immediate removal of offending sites from Google. It is clear that Google is no longer off-site. If the sanction is not always as severe (in most cases, you are penalized by a demotion in rank) is what awaits you if you play with fire too. Are you ready to take such a risk?