Hi Tina,
You think all xml feeds produce duplicate content to the sites they are going into?
The site the feed is coming from in this case is not neccessarily the most important one for this excercise. The hundred plus other sites that will use the feeds on their pages are all customers so working out the pro's and con's for them displaying a large amount of data via the xml feed in their pages.
I could use the canonical tag, this would have to be set up on original site that has feed.
The 100+ sites using the feed want to know if there pages can be indexed with the xml feed on to be found in the search engines, or is this duplicate without the canonical link?
For the purpose of this, the sites cannot create unique content.