g1smd - 7:19 pm on Aug 19, 2010 (gmt 0) [edited by: tedster at 1:19 am (utc) on Aug 20, 2010]
If you add a canonical tag, make sure it references the correct URL!
What is the correct URL?
It is the minimal length path and minimal number of parameters to reach that content...
www.example.com/ not www.example.com/index.html
www.example.com/?page=46 not www.example.com/index.php?page=46
www.example.com/?page=46 not www.example.com/?action=show&page=46&page=next
It is not good enough to pick one URL, any URL, as the canonical URL; you must pick the correct canonical URL.
[edit reason] fix typo [/edit]
[edited by: tedster at 1:19 am (utc) on Aug 20, 2010]