The fight to top search engines' results knows no limits – neither ethical, nor technical. There are often reports of sites that have been temporarily or permanently excluded from Google and the other search engines because of malpractice and using “black hat” SEO optimization techniques. The reaction of search engines is easy to understand – with so many tricks and cheats that SEO experts include in their arsenal, the relevancy of returned results is seriously compromised to the point where search engines start to deliver completely irrelevant and manipulated search results. And even if search engines do not discover your scams right away, your competitors might report you. There are vis a vis to understand about it :
Keyword Density or Keyword Stuffing?
Doorway Pages and Hidden Text
Duplicate Content
Links Spam
