Sources for US Army Field Manuals

Here we'll collect the various sources that were so kind as to provide Field Manuals. This page will document our research insofar as we slowly work our way through this surprisingly complex topic.

APD - Army Publishing Directorate
The very first and best start is of course the US Military itself, which maintains a server with recent and up to date FMs insofar they are available to the public: 

CARL
For older FMs (and a treasure trove of other studies, histories, and documents) visit CARL, the Ike Skelton Combined Arms Research Library.

Library of Congress
For those wh are completely new to the topic, or want some background information, the Library of Congress has written an amazingly detailed Ressource Guide to its holdings of FMs.

FAS
The Federation of American Scientists maintains a large collection of newer and modern US Army FMs on its website, documenting military developments around the world.

BITs
The unfortnately now defunct Berlin Information Center for Transatlantic Security kept a large directory of modern FMs and doctrine-related documents redarding European security policy.

CDSG
The Coast Defense Study Group has done an amazing work in documenting the history of fortifications in the United States, and has an extensive collection of documents on their website.

Digital Commons@University of Nebraska
Several US-American universities maintain collections of documents available to the public. The University of Nebraska served as a source for FMs related to Army intelligence, especially for the times of the Korean and Vietnam wars