This subpoena, written by FBI Agent Robert Smith, was served upon Cloudflare, an aggregate site server providing web security as a service. If you sign your website up with Cloudflare, the service chases away hackers and spammers. Project PM is served by Cloudflare. Project PM is a shared journalistic research resource that Barrett Brown helped found. Basically, journalists who want to share their research put it on the site so others can access it.
Barrett Brown has been hit with 3 federal indictments. The first indictment notes that "Project PM was a IRC/wiki-based blogger network created to allow Brown and those he associated with to share information and achieve or pursue certain goals." It is unclear why Project PM is mentioned in an indictment or why it is the subject of a subpoena, as journalism and research are legal activities. It is also unclear why, if the government wants to read Project PM, they don't just get on it and read, since it is publicly available on this magical thing called the internet. These things have yet to be explained.
The subpoena is being challenged by an intervenor represented by a lawyer named Jason Flores Williams, of New Mexico. Stay tuned. This should get interesting.
The subpoena pages below are jpegs. If you want to see them bigger, pull them off the page and click to enlarge to any size.
