Our Training College has lost all Google traffic to its site since the update:
http://www.nationalcollege.edu.au
All its content is original.  On some searches content that has been scraped from it and links created by directories and content scraping sites rate ahead of it.  The site no longer ranks at all after previously having a significant amount of traffic from Google searches.  The site offers good quality information for people looking for vocational training in Australia and has consistently generated a good page views and actions of enquiries through the site and by phone.  The site has had a lot of work invested in providing good quality content.  Any information on what we should do or review by Google would be greatly appreciated.
Thanks for your help and consideration.