Articles About Canonical
Duplicate Content has long been an issue with webmasters and is cause for concern because duplicating content dilutes your ranking in search results. Perhaps the most common cause of having duplicate content is in allowing both www. and non www versions of your site to exist. However, another place where I see duplicate content occur [...]
In case your are not aware there is a new Canonical tag that is supported by Google, Yahoo, and Microsoft. Important news, especially for people working with CMS systems.