In one of my recent posts I wrote about the duplicate content issue. This topic is especially important to me since my blog uses the WordPress content management system which, when used with the default configuration, is not duplicate content proof. In fact this CMS is capable to render almost 100% of your content duplicate.

As usual the fault of the system has roots in its advantages. WordPress has many features facilitating blogging and linking, such as RSS feeds to posts and comments, trackback URLs, monthly archives and so on. In the same time this variety of URLs returning similar or identical pages represents a clear case of duplicate content.

Read more at:
http://www.seoresearcher.com/how-to-make-your-wordpress-blog-duplicate-content-safe.htm