I am continually impressed with the Public Library of Science and their free-access journal (see PLoS Medicine link in side bar). Don’t be fooled by the title, because they publish on issues much wider in perspective than simply “medicine.” Much of what they do could truly be called public health and human rights related.
If you have never spent much time at their site, I want to point out a few places that offer a lot of valuable reading.
The journal has a special collections here http://collections.plos.org/plosmedicine/index.php where they highlight special topics including: Global Poverty, Grand Challenges in Health, Disease Mongering (interesting phrasing and worth a read), Pediatrics, Social Medicine (including an article by Paul Farmer), and others.
These are all very interesting and worth-your-while collections to browse. To highlight one of them, the Disease Mongering papers open with, “Disease mongering turns healthy people into patients, wastes precious resources, and causes iatrogenic harm. Like the marketing strategies that drive it, disease mongering poses a global challenge to those interested in public health, demanding in turn a global response. This theme issue of PLoS Medicine is explicitly designed to help provoke and inform that response.”
Also, the Poverty collection includes compelling articles about, child rights, "moral imagination" as a missing component in global health (a particularly interesting read), and others.
The papers in all of these collections are well written, well researched, and are certain to make you think. Happy reading.