Rich Mogull of Securosis.com just completed a sponsored report called the Executive Guide to DLP, including a video series (3 clips).  You can check it out here: http://www.websense.com/welcome/MiscLandings/exec_DLP/exec_DLP.html

Description: Reported data breaches increased by nearly 50 percent in 2008 and industry and regulatory requirements are continually being added to stem the tide of data leaks. Data loss prevention (DLP) technology has never been more important. To that end, we’ve developed the tools below to help guide organizations considering DLP technologies.

p.s… congratulations to Rich and Adrian on their new website.  Looks great, guys!