Whistleblowers — insiders who expose corrupt or illegal activities — are an important source of information for journalists everywhere. From their position inside governments, companies, and other organizations, they can provide crucial leads, evidence, and sometimes “smoking guns” that expose everything from fraud and waste to criminal conspiracies and war crimes. It’s important for journalists to identify the motives of whistleblowers and to verify their information. Equally essential is knowing how to best protect them as sources. Fortunately, there’s a wealth of information on whistleblowing, including a growing number of NGOs with expertise around the world. To help journalists to navigate this challenging terrain, GIJN has created the following list of resources.