The Harvard International Review provides a unique perspective, devoted to addressing undercovered yet important themes on international affairs. The magazine gets some of the biggest names in academia and policy making (statesmen, presidents, etc) to provide analysis of stories and trends that slip through the cracks of other sources on international affairs.
The organization's website, www.hir.harvard.edu, is also helpful.
The International Review offers some of the most original and insightful analysis of international affairs I've seen in a long time. It's accessible and it's informative, and it makes a great addition to any library.