R. Yisrael Meir Ha-Cohen’s Sefer Chafetz Chayim is the only major work that touches on these issues, though it does not, to my knowledge, discuss newspapers explicitly. There has not been much debate concerning the arguments made by R. Yisrael Meir Ha-Cohen in his classic work, which surprises me. That is not to denigrate, Heaven forbid, the scholarship of the Chafetz Chayim; but, in Halakhah, all the great works are debated and challenged. Challenging the arguments made in a halakhic work is often a sure sign of its enduring relevance.
Michael Pershan, “Halakhic Values of Journalism,” Responsibility Inscribed, vol. 1 (2012), 34.