[5] He was one of the earliest advocates and supporters of citizen journalism, encouraging the press to take a more active interest in citizenship, improving public debate, and enhancing life.

[14] He authors the PressThink blog on "the fate of the press in a digital era and the challenges involved in rethinking what journalism is today".

[18] Since 2009 Rosen has collaborated with technologist and writer Dave Winer on Rebooting the News, a weekly podcast on technology and innovation in journalism.

[19] In 2016, he addressed the prospects for journalism under the presidency of Trump in two articles on the PressThink blog, given the growing concerns among journalists.

[24] The format is intended to be a subscription service that is ad-free, with variable rates that depend upon the financial level of support determined by the subscriber.