G.I. Journal: Bi-monthly (and currently defunct) magazine dedicated to the US Army in WW1 and WW2. Site lists the articles printedin each edition.
MagWeb: Thousands of online articles from over 70 military history and gaming magazine titles. A subscription is required to access them, but there is a good selection of free samples.
Military History Magazine: Sample articles and the chance to subscribe to the paper version.
Society for the Study of Peace and Conflict: Analysis and balanced discussion of books based on content, style, and merit.
The Military Book Review: Reviews military history books, including those covering World War II, World War I, the Napoleonic era, Korea and Vietnam.