tedster - 4:43 pm on Mar 26, 2009 (gmt 0)

I know two examples - one shows no change so far, the other a minor upward change that may be from a different cause. Both these cases were preventative. That is, they were not yet showing signs of a canonical problem in their rankings, but they could not easily fix their server set-up.

I would like to hear from someone who did have a problem with non-canonical urls showing up in the index -- both /directory/index.htm and /directory/ or query strings used only for tracking, for example.