A web-site directory of Signals Intelligence (SIGINT), Communications Intelligence(COMINT), Electronic
Intelligence (ELINT), Cryptology, Military & National Intelligence Security Operations, and related
This is not a search engine. Everything here can be found via most major search
engines. What we are doing is consolidating, weeding and cataloging, in admittedly arbitrary categories,
those that we think are useful sites. Site listings may appear in more than one category. Also some of the very
large and diverse sites will have more than one link listing as they often cover a wide range of SIGINT
subject matter. We hope visitors find this helpful in exploring the many aspects of Signals Intelligence.
To recommend a web-site for inclusion in the directory, please use the email contact form.
Recommended sites are reviewed by actual living humans for approval/disapproval before they are included in the