Hi,
I ended the affiliate programmes with Shopwiki, Digidrop and one or two other similar affiliates. We saw a quick and small bounce back of some product related terms but it has take a while for the affiliates to remove our data so their listings are still dropping our of google. It seems that for some reason the affiliates are being credited with being the owners of the content and therefore listing higher than us.
Do you think this is because the feeds are uploading every night and Shopwiki etc are being spidered quicker than our site. One solution may be a weeks delay in new products being put onto our affiliate feeds.
Here is an example of where the affiliates are all listing above the link for http://www.gear-zone.co.uk
Please let me know what you think and how you are getting on with the issues you are experiencing.