There is a link on the Aon.com homepage for their latest ERM survey conducted in 2009 Q3.
Aon writes:
The study was designed to show the extent to which ERM has been successfully implemented across organizations globally; the effect ERM has had on harmonizing organizational needs, culture and stakeholder requirements; and how ERM is being used proactively to balance risk, opportunity and value.
In addition to survey results, several case studies are also provided including Eli Lilly and Pirelli Group.
I am just having my first look at the document right now and hopefully will post some additional comments in the next days.