The articles in IT recommended by ctacker and written by Al Moore were very helpful.
http://www.aws.org/itrends/2011/01/InspectionTrends_201101/index.html#/26/If this link doesn't work, you can get there from the AWS website or Google Inspection Trends and go to Winter 2011 in the Past Issues section.
Al is also one of the very best contributors (minus his political rants
) on this forum and his user name is 803056 FYI.