Does duplicate content harm the SEO performance of your own site?

Some of you might be concerned that by giving EveryStay the same content (images and descriptions) as you have on your own website, you create 'duplicate content' on the web which may harm the SEO performance of your own site. There is no reason to worry. Towards search engines, EveryStay marks all house content as 'we are not the original source' by using so called 'canonical tags'. This way the search engine knows that they should continue to assign all 'unique content' credit to your website.