If you can get past the statistical formulas, there is an interesting article in the May 2008 issue of American Political Science Review on whistleblowing (Michael M. Ting, p.249). The study considers the effectiveness of whistleblowing and evaluates strategies based on managerial models.

The article also reviews the personal costs & benefits of whistleblowing and historical protections of such. Pertinent cases include the Civil Service Reform Act (1978), the Whistleblower Protection Act (1989) and the Sarbanes-Oxley Act (1992).