Google, Content Farms and Repositories

"In recent news, Google has altered its ranking algorithms to favour sites with original material rather than so-called content farms that simply redistribute material found on other sites. Although users report satisfaction with improved results, this action has caused quite a furore with some genuine sites losing significant business as well. I have been worried about how this would affect repositories, after all we technically fit into the definition of content farms: sites that exist to redistribute material that is published elsewhere. Bearing in mind that Google delivers the vast majority of our visitors to us, if the changes were to impact on our rankings, we might suffer quite badly. Now that there's been a couple of weeks for the changes to migrate around the planet, our usage stats point to business as usual...."