How do Mat Releases affect SEO? Does google recognize that your are syndicating duplicate content even if the content is being syndicated across top media outlets? Do these back links still carry any authority or can we even be penalized for the duplicate content? I came across mat releases here: http://matrelease.com/ An example of article syndication outlets: Guaranteed Placement on 800+ Media Sites. Generate guaranteed article placement on more than 800 respected online media outlets. Our digital distribution network includes: The LA Times; The Milwaukee Journal Sentinel (JS Online); Las Vegas Review Journal; Hearst media sites for the San Francisco Chronicle, Houston Chronicle and Connecticut Post and others; local TV news affiliate sites from ABC, CBS, FOX and others; and hundreds more trusted sites.

We are running a marketplace site, so we have thousands of vendors selling their products on our site. Each vendor has a Profile page and we are soon to launch a premium store-front that is white label. Many of these vendors will want to point a custom url to their premium store-front (which is a sub domain of the marketplace) and we are trying to get an understanding of how we should instruct them to point their url in a way that will give the main marketplace site the seo juice. We also want to understand what will show up in the address bar.  Will it be their url or our sub domain? Will any of the marketplace seo juice boost their url local listing status?