Tools and tips round up: A new Google search filter and two guides to open source research

Plus: Analyzing shadows, tools for Telegram, and more!

Investigators have two new, free books to help guide open source research.

In April, the Center for Strategic and International Studies released “Open Source Investigations in the Age of Google.” From a description of the book:

Hi! Digital Investigations has become Indicator and all of my content has moved to Indicator.media. Please go there to read and subscribe.

Indicator publishes multiple times a week. It offers original reporting, in-depth investigations, and practical tutorials on open-source intelligence (OSINT) tools and techniques.

I hope you’ll join me there!