First post so please refrain from immediate flaming :)
I manage my wife's accountancy website and she pays for a general accountancy newsletter each month to get emailed out to her clients. There is a little customization but 90% of the content is shared with other UK based Accountancies who have signed up to the same service.
I have been converting the emails to html and putting the content on my wife's website for the last few years as newsletter archives.
Now with the release of Google's Panda I am very worried that this known duplicate content is bringing the SERPS down - some keyword search results have dropped a page, others though have stayed put (#2 is the highest ranking and that one has stayed - for now at least). I have confirmed the duplicate content with the online copyscape search tool.
So my question: is there a way to avoid google penalties for duplicate content? eg. put noindex/nofollow on all the newsletter pages? Or is it too late for that given the last few years are already in google's index?
Many thanks
Alex