If you are interested in developing your open source research skills, these resources will help.

• Bellingcat provides an open source toolkit and the chance to take part in their monthly challenges at challenge.bellingcat.com. You can also join their community of learners and practice your skills on their Discord Server. This is a great way to stay up-to-date with the latest tools and investigative techniques.

• The Global Investigative Journalism Network publishes a series of tipsheets on open source techniques, such as social media search, finding people, visual thinking, investigating war crimes, and how to use Wayback Machine.

• The OSINT Framework provides a comprehensive directory of open source intelligence tools from social media networks and messaging apps to geospatial services, and public and corporate databases.