CMS recently published a resource reference listing the internet resources available for fraud and abuse research and reference. Below is a link to the Medicare Learning Network publication and direct links to the fraud and abuse web resources cited therein.
Medicare Learning Network
http://www.cms.hhs.gov/MLNProducts/downloads/Fraud_and_Abuse.pdf
OIG Listserv
http://www.oig.hhs.gov/mailinglist.asp
CMS Website