The Streetwise Security Zone Discussion Forums are a great way to see what other managers are doing about security and what problems they have faced. You can find a lot of helpful hints and tips that could save you time and money.
You must join The Streetwise Security Zone (click HERE) in order to reply or post new items in the forums.
http://www.cio.com/article/513168/Social_Networking_Hacks_Top_10_Facebook_and_Twitter_Security_Stories_of_2009?page=2&taxonomyId=3089
The above article from CIO magazine provides a good reference for case studies on modern security risks.
