Common Black Hat techniques are spamdexing, link harvesting and keyword stuffing. SEOs performing this activity use hidden text (either as text coloured similar to the background or in an invisible positioned off screen) to mislead search engines. Cloaking is another popular Black Hat technique. This application gives a different page result when a page is being requested by a human visitor or a search engine.
Penalties for black hat technique
Search engines have strict guidelines for black hat. A website can be penalized or banned for performing black hat SEO. Search engines can reduce the ranking of such websites or can eliminate them from listing permanently. BMW and Ricoh are examples of stringent actions taken by search engines for black hat practice. In 2006, Google also removed PPC Agency BigMouthMedia from its listing.
What is the solution?
SEO companies offering professional SEO services avoid all sorts of black Hat practices. Search engine optimization is a long term process and only healthy practices can yield good results. The advent and popularity of social Medias have helped a lot to SEO professionals in this regard. They are using viral marketing as a useful strategy for making websites popular in a shorter time frame.