General OSINT References

Compendium site of Open Source, Crypto Currency, Social Media and Dark Web resources.Be sure to share it with your friends! 👍
Internet Service Provider list by SEARCH – Great for finding where to serve process, etc.
Intel Techniques
A great resource owned and operated by Michael Bazzell
Intel Techniques Online Tools
IntelTechniques Tools are BACK!
OSINT Framework
Repository of data sources
Bellingcat’s Online Investigation Tool Kit
Tools used by Bellingcat in their investigations
Databases, search engines, tools and more to help you investigate online and improve your skills
Internet Archive
Digital Library of Free & Borrowable Books, Movies, Music & Wayback Machine