Whistleblowers have usually been treated as outcasts by private-sector employers. But legal, ethical, and practical considerations increasingly compel companies to encourage employees to disclose suspected illegal and/or unethical activities throughinternal communication channels. Internal disclosure policies/procedures (IDPP''s) have been recommended as one way to encourage such communication.This study examined the relationship between IDPP''s and employee whistleblowing among private-sector employers. Almost 300 human resources executives provided data concerning their organizations'' experiences.