| http://www.w3.org/ns/prov#value | - For example if there is a duplicate page and it is not easy to 301 redirect and you can not easily get rid of the duplicate, adding the rel canonical tag would tell Google which version is the main version.Here is a good resource on Rel Canonical Tags: http://www.seomoz.org/blog/complete-guide-to-rel-canonical-how-to-and-why-not
|
