A bilingual OSINT project offering scenario-based challenges and structured analytical method guides for passive open-source research. Its excerpts cover building and aging personas for observation, plus an introduction to what OSINT is and how it differs from hacking.

Social Links is an OSINT blog that publishes practical guidance on open-source investigation, covering topics such as anti-human trafficking research, misinformation detection and location analysis in social data. Its articles focus on how to move from raw signals to documented findings while noting the limits of each method and the risks to survivors and third parties.

A weekly OSINT newsletter covering investigation tools, tactics and techniques, with step-by-step tool walkthroughs such as FOFA and Telegago, plus curated news and community-built tool roundups. Readers get practical guidance on finding and verifying online information and a steady stream of new resources.

Ravenwood publishes intelligence-tradecraft content, including statistics and analytic literacy, cyber threat assessments of critical infrastructure, and a series on managed attribution for open-source collection. Readers get practitioner-oriented explainers and analysis, with some republished partner content.