Take a look at your website. How much of your content might be considered as duplicate by a search engine algorithm? Even though you never copy anyone you can't answer 'none' because someone can be copying you. Duplicate content is one of the biggest issues both for search engines trying to keep their results' relevancy high, and webmasters trying to avoid search engine penalties.

Search engines continiously battle web spam produced by 'black-hat' SEO - millions of pages created to manipulate search results by spammy linkage, keyword stuffing and other tricks. In my article I describe several statistical methods used by search engine to detect such pages.

The nature of the Web as an interlinked hypertext environment suggests that links can be used to measure the degree of 'public recognition' of web pages.

People think that copy and content are two different things, since they serve two different purposes of motivation and information. But in terms of user conversion their differences fade away.

Some vital strategies on link building and tips how to make the most of the incoming links and avoid search engines penalties