Comment on Duplicate Content Penalty SEO by liz morris.

Duplicate Content Penalty I have a villa rental website with about 700 properties. Recently i have made collaborations with other rental portals and shared all property details ( photos, prices, descriptions etc) via an xml feed.

Is this classes by Google as copied content? How do hotels manage this when their info is the same on hundreds of websites?

Does that conflict SEO wise with the beauty of xml?