I read an interesting article by Yoast on duplicate content [yoast.com
Ages ago I kicked this thread off [webmasterworld.com
...] but to be honest my developers and SEOs have handled it well.
But not my new team who are unfamiliar it seems with a quick upfront set of tasks to settle things in.
On multiple sites we have launched with separate ccTLDs and new URLs, we are battling both internal site duplication and erroneous cross linking which should not exist. There are all sorts of duplicate entry paths, such as currency variants and language variants. Non "/" URLs as well as intended "/" ; old pages and URLs not properly 301d or 404d ... the instances seem to pile on and it's stuffing the traffic in Google.
WMT shows 500k+ links from one site to another just to give a sense of the extent etc etc.
Is there an exhaustive and generic checklist that developers should have on hand to deal with this on Wordpress through the dev stages. As much as I love plugin creators, I don't feel comfortable shelling out $$s for what should be reasonably anticipated developer administration .
Thoughts on the checklist, or reference to other sources, and ways to help?