* The Foreign Policy Research Insititute
* PropOrNot
* EDIT: The Post also says, The findings about the mechanics of Russian propaganda operations largely track previous research by the Rand Corp. and George Washington University’s Elliott School of International Affairs.
* EDIT: The Post uses yet more sources later in the article.
Unless you read about two-thirds of the long Intercept article, to where FPRI is first mentioned, the impression is that the Washington Post relied only on PropOrNot.
EDIT: In fact, The Intercept seems to misrepresent how propaganda is identified. It's simply information from known Russian gov't sources (e.g., Russia Today (RT)) that is repeated elsehwere. Here is the heart of the Post's report:
....
The researchers used Internet analytics tools to trace the origins of particular tweets and mapped the connections among social-media accounts that consistently delivered synchronized messages. Identifying website codes sometimes revealed common ownership. In other cases, exact phrases or sentences were echoed by sites and social-media accounts in rapid succession, signaling membership in connected networks controlled by a single entity.
PropOrNot’s monitoring report, which was provided to The Washington Post in advance of its public release, identifies more than 200 websites as routine peddlers of Russian propaganda during the election season, with combined audiences of at least 15 million Americans. On Facebook, PropOrNot estimates that stories planted or promoted by the disinformation campaign were viewed more than 213 million times.
https://www.washingtonpost.com/business/economy/russian-prop...