Many if not all of the societies listed in the “Stamp Societies” links publish journals for their members.  We have listed a few below, but there are many more available on line.  Usually the society website clearly indicates its journal availability.

American Philatelist
Monthly magazine published by the American Philatelic Society, more than 100 years of back issues available

The Chronicle
Publication of the U.S. Philatelic Classics Society

The United States Specialist
Journal of the U.S. Stamp Society, its journal is available on line back to 1930

Linn’s Stamp News (subscription)
This weekly stamp newspaper has been published for nearly 100 years

U.S. Stamp News, Mekeel’s and Stamps (all subscription)
Long-time stamp publications that keep you up to date on stamp news

Stamp World
It claims to be the most complete stamp catalog available

American Philatelic Congress
Since 1935 the Congress has published an annual book of eclectic articles about many aspects of stamp collecting and postal history